169 thoughts on “FAQs”

    1. G’Day Taylor

      here’s how to get the XL TekTowel back into its pouch:

      – Fold the towel in half across its shorter axis; it will now measure 30″x30″
      – Fold it in thirds; it will now measure 30″x10″
      – Fold the left third towards the middle, then fold the right third towards the middle; it will now measure 10″x10″
      – Fold it in half; it will now measure 10″ x 5″
      – Slide this into the pouch. Voila!

      Hope this helps –



      1. Hi, I have the inflatable Aeros Pillow Ultra Light-can that go in the washing machine? Or what’s the best way to freshen after a week of deep woods camping?

    1. G’Day Michelle –

      absolutely no issues with putting boiling water in an X-Mug – it will not damage it in any way. X-Mugs are also dishwasher safe, and can be used in microwave ovens.



      1. YAY! I had the same question. Funny that it says -40 deg. C to +180 deg (but no C or F) on the bottom. Especially funny since -40 C = -40 F but 180 C != 140 F. It would be helpful for this to be on the product label as I likely would have bought 3 last weekend at the store instead of 1.

      2. G’Day, Dan
        Thanks for checking in with us. The symbol on the X-Plates/X-Bowls does show +180 deg C, whereas the the X-Mug shows only + 180 deg.

        For the sake of clarification, 180 degrees Celsius is 360 degrees Fahrenheit; so your X-Products are safe to use even with boiling water.

      3. G’Day!
        Looking for warranty info on the X-cups … I bought 2 cups and 2 bowls right before a 2 week Canadian canoing trip, and 3 of the 4 pieces are doing great! … the 4th piece however, one of the cups, has already formed two holes in the fold areas. Obviously no good for coffee anymore! Thanks for any help you can provide …

      4. G’Day Steve –

        sorry to learn that one of your X-Cups is looking a little worse for wear. All Sea to Summit products are warrantied against manufacturing and material defects, and this is clearly the case here.
        We’ll be happy to replace the Cup for you free of charge – if you email me at info@seatosummit.com I’ll provide you with details of how this works.



  1. wondering about compression bags… What if one doesn’t have a big enough box for a sleeping bag to measure for demetions??? sea to summit on FB asked me to ask ya.

    Also.. what gear do you recermend I get for kayaking?? I recently bought a pungo 140 … I am still buying gear for it.. I have a sleeping bag (same one as i want to buy a compression sack for), a tent, a first aid kit and some other stuff.. I am going to add some sea to summit stuff to my stuff also.

    thanks for the information!

    1. G’Day Lisa!

      One thing which is key to kayak touring is compressible gear. You don’t have much room in a kayak, and all your equipment has to be small enough to fit through the hatches.

      So – if your sleeping bag has a really large packed volume, it honestly might be better to invest in a less bulky bag.

      If you’re going to stay with your current bag, here’s how to measure its volume. My colleagues who maintain the facebook page have already suggested a dresser drawer or a clean recycling bin; if neither of these are handy, you need to find something else large and rectangular. Could be one of those large Rubbermaid bins you keep Christmas decorations in. Or maybe a laundry basket. Anything which is roughly rectangular which you can fit the sleeping bag into and measure the length, width and height. Or you could simply measure the current stuff sack (length and diameter). Once you have the dimensions, send them to me as a comment and I’ll tell you which eVent Compression Dry Sack you need.

      Other gear you’ll need for kayaking?
      – Lightweight Dry Sacks for keeping clothes, a sleeping pad and food in. I would also pack the poles to the tent separately from the canopy; I would keep the canopy in a Lightweight Dry Sack
      – A TPU Guide Map case for your map
      – A DryLite Towel / 5 Liter Kitchen Sink / Wilderness Wash for your personal washing and camp kitchen
      – Maybe an Access Deck Bag for things you need to grab quickly (for the deck in front of you)
      – A Canoe Cart if you need to transport (portage) the boat

      Just be aware that – as I mentioned – small and compressible is the key.


  2. I actully have lots of room for a kayak (wilderness system pungo 140). I will get a dry sack for the tent, thats a good idea.

    I will measure my sleeping bag, I don’t plan on buying another.. and I need a sleeping pad also.

    thanks for the info.

  3. Hello,
    I was curious if you deal your products straight from your website. I have been looking for the 3pc X-Set (plate,bowl and mug) and can only find the 2pc set and the individual pieces. I mean it would be nice to have the 3pc set cause then you get the bigger zipper pouch for storage instead of zippering bowl and mug and plate floats around instead of altogether!!

    Kendall in Canada

  4. G’Day Kendall

    sorry to learn you’ve had difficulty locating the 3-piece X-Set. Sales were so strong that we were sold out of this product in the last two months of 2011, which is why it has been hard to find.

    We don’t sell to consumers via our website (we’d rather support our retailers than compete with them), but if you let me know where you’re located in Canada I’ll be more than happy to arrange a special order of the 3-piece set through a local Canadian Sea to Summit retailer.



  5. Hello,

    I have bought 2 of 100% Premium Silk Liner (Traveller version) and I am a bit disappointed with those. While the liner are good, I am surprised with the sack bag/stuff bag that comes with those which seems to be wrong size?? I couldn’t fold the linears tiny enough to be fitted inside the bags. There are no instruction on the website nor label on the bag how to fold the linears properly.

    I mean, once I tried to fold teh bag tiny enough to fit inside the bag but it takes 10 mins?? I don’t want to spend 10 mins per bag obviously. And it seems that I would need an iron and ironing board to flatten the linear nicely into the bag. I don’t think that carrying iron and ironing board with me to the backpacking would be very practical (not to mention baggage fee for those!).

    So please could you instruct us how to fold the linear (traveller) properly so we can fit those into the bag easily and effortlessly, just like you instructed one above poster on how to fold the travelling towel.

    Sorry if I sound annoyed – it is just that I spent a good money on those and the bags just seem to fail its jobs. Felt like I regret my purchase on those or something.

    Thank you for the instruction.

    1. G’Day Pete

      Sorry to learn that packing your Silk Liners away is proving so challenging.

      Fortunately, it’s not necessary to use an iron and ironing board to flatten out the liner (although the idea of an ultralight backpacking iron is pretty intriguing…). Here’s how I pack liners away into their zippered pouches:

      – lay the liner flat. The Traveller liner will measure 88” x 36”
      – fold the liner in half longitudinally (lengthwise). It will now measure 88” x 18”
      – fold the liner in half again, longitudinally. It will now measure 88” x 9”
      – fold the liner in half once more, again longitudinally. It will now measure 88” x 4.5”
      – now roll the liner, starting at one end and maintaining firm pressure
      – it should now easily fit into the pouch which measures 5” x 3.5” x 2.5”

      Let me know if this works for you.



  6. Hi, I purchased two of the “100% Premium Silk Traveller Liner”s a few years ago and loved them. They came with a stuff sack shaped like a soda can with a drawcord at the top to close the stuff sack. This was wonderful as I could sit on the plane, in my tent, in a guest room and just stuff my liner in the top of the stuff sack with a couple fingers, and the liner would disappear – like magic.

    Then, sadly, I loaned one of my liners to a co-workers daughter to use on a trip – never to be seen again. Well, the daughter was, just not my liner.

    I replaced the missing liner easily, but the ‘stuff sack’ had changed. Instead of the simple ‘soda can with a drawcord’ style that works so well, it is now a rectangular shape with a zipper on two sides. This has taken away from the simplicity of a stuff sack and has made repacking my liner more of an exercise in patience when I am trying to pack my bedding. Ugh.

    When camping or travelling I want stuff things in stuff sacks – liners, sleeping bags, jacket liners. Stuff stuff stuff. Folding is something that I do at home, not when I’m out having fun.

    Is there a way to get a hold of one of the older style ‘soda can with a drawcord’ style stuff sacks? Otherwise I may have to sew one myself and it frightens the hubby when I break out the domestic gear. 😉

    Thank you

    1. G’Day Jean –

      wouldn’t want to have your better half to have to endure unnecessary panic as a result of the sewing machine coming out… I’ll email you with a solution which might work for both you and your husband.



      1. Thank you so much for your help on our predicament. Hubby would thank you for saving him from ‘domestic panic’, but I think I will not let him know how close he was, ignorance being bliss and all.

        Thanks again,

    1. G’Day Gail –

      no need to fold the Shopping Bag; just stuff it! You can see a video of Sea to Summit staff members stuffing the similar-sized UltraSil Duffle into its stuff sack here

      I trust this helps!



      1. Hi – just bought the Ultra-Sil Duffle and am flummoxed about how to fold and get it back in the bag. In a post above you make reference to a video, but there’s no link. Can you provide it? Thanks!

  7. I am having trouble where the seam cover came off of my 30l Ultra Dry-sil Bag. Is there anything I can do to reseal it to the bag?

    1. G’Day Philip,

      Sorry to learn you’ve experienced an issue with seam-tape delamination on your UltraSil Dry Sack. This problem affected only a very few dry sacks from the very first production run; we corrected the issue and haven’t had a repetition since then.
      All Sea to Summit products are unconditionally warrantied against manufacturing and material defects – please email me at info@seatosummit.com and I’ll provide you details on how to return the dry sack for a free replacement.



  8. So, I wasn’t thinking and ran my StS Alphalight Spork through the dishwasher. It was in a pile of other cutlery, and I was too tired to think through what I was doing 🙂 Lesson learned, and now the finish is totally messed up. Now that the spork has gone through the dishwasher, is it still safe to eat with?


  9. My sleeping bag is a kelty cosmic 20 down, stuff size is 8×14 what S to S e Vent dry compression sack do I need ? Tks.

    1. G’Day Roger –

      sorry for the delayed reply; your question just showed up in the ‘comments’ section of the blog.
      My recommendation would be for the Medium sized eVent Compression Dry sack. You *could* squeeze your sleeping bag into the Small size, but in either case, the sleeping bag will compress down to around 5 Liters. My preference is always to have a little extra room when you’re trying to pack things into a compression sack – helpful if you want to pack a liner or some other compressible gear, and easier to work with if your fingers are cold.

  10. Hi there,
    I was considering buying some of the alphalight cutlery advertised on this website though I saw the warning advising against washing the utensils in a washing machine. Just how durable can these utensils be if they cant handle a run through a dishwasher?
    Thanks in advance for your advice.

    1. G’Day Chris –
      You ask an excellent question. The issue with washing in a dishwasher is not of durability, it’s actually the caustic chemicals in dishwasher ‘soap’ (which isn’t actually soap at all). These chemicals react with anodized finishes (not just on Alpha / AlphaLight Cutlery – a colleague of ours ruined a set of expensive European anodized pots and pans by putting them in the dishwasher).
      Alpha / AlphaLight cutlery is made of aircraft-grade alloy and is hard anodized – kept away from a dishwasher, they will last a very, very long time indeed.
      I trust this helps –

  11. Is Ultra-Sil™ fabric made with Cordura® yarn washable? The material is water-resistant due to coating layer? If that’s the case, washing it frequently will make the coating to come off and no longer water resistant?

    The reason I’m asking is that the “Travelling Light™ SHOE BAGS” need to be washed frequently…. so is the Stuff sacks that will carry my dirty clothes….

    1. UltraSil fabric is siliconized – the silicone permeates through the gaps between yarns and wraps around the fibers to a far greater extent than a polyurethane coating would. As such, it’s much less likely to be degraded by washing than a coating.
      Having said this, the same rules apply here as with all lightweight waterproof fabrics:
      – if you wash UltraSil in a top-loader washing machine you will expose the fabric to far more wear than in a front loader. Hand washing is better.
      – washing machines may leave detergent residue in the fabric which will reduce the effectiveness of the waterproofing. Using a non-detergent soap is a better idea; rinsing thoroughly is essential.
      – Dryers should be avoided at all cost as they will damage the lightweight fabrics. Air drying is the way to go.

      In short, if you hand wash your Travelling Light stuff sacks / shoe bags using a non-detergent soap (such as Wilderness Wash) and air dry them, they should retain their water-shedding capabilities for many years to come.


  12. Another question: Beside the weight & colors, what’s the different between:
    1. Travelling Light™ Sling Bag vs. Ultra-Sil® Sling Bag
    2. Travelling Light™ SHOPPING BAG vs. Ultra-Sil® Shopping Bag
    3. Travelling Light™ Duffle Bag vs. Ultra-Sil® Duffle Bag

    1. G’Day Chiarina –

      sorry for the delay in replying; we’ve had a bit of a computer glitch with the blog.

      You’ll be happy to know that we do not use animal-derived products in our soaps/care products, and we do not test them on animals either.



  13. I have an AquaRack question: what is the proper boat position (kayak) in the rack? On its side? Upside down? Facing up? Don’t want to damage the hull! Thanks!

    1. G’Day –

      apologies for the time taken to reply to your question; we’re having some technical issues with the blog.

      No such issues with AquaRacks: the beauty of the system is that the foam sleeves spread the load of the boat resting on the bars and prevent damage. And – you can rotate the boat through 360 degrees: turning it upside down might be a good way to drain it.



  14. This is me again, the question above”jonas – 1 august 12.03pm”
    I went back to the store, and ALL of their Sea to Summits EVENT bags were defect!!!

    You must have some kind of production error, all of the bags in their shells were not letting the air out! And I made another observation(might not have anything to do with it) but the event fabric were much more orangier then my other examples…

  15. I have a 44L backpack for international travelling and I was looking at getting the sea to summit pack converter, but both sizes are much larger than my bag. Will a small pack converter every be available to purchase, for those of us that pack lighter and smaller?

    1. G’day Kara

      thanks for asking about a smaller Pack Converter/Duffel. It’s a great idea – as you mention, many people backpack with smaller lighter packs (and many travelers simply want to travel with a carry-on sized bag).
      We don’t have a product like this in the works just now, but I’ll forward the comment to our design and development staff (and add your email address to the product suggestions log).
      Thanks for the great product idea!



  16. I bought 2 sea to summit 8L dry bag made out of cordura fabric. I want to apply waterproofing spray to ensure extra protection. Do you think using a waterproof spray will damage/ or prevent the performance of the bag?

    1. G’Day Anthony

      Thanks for taking the time to write to us about use of additional waterproofing sprays on your UltraSil Dry Sacks.

      The short answer is that the sprays (which are water-based emulsions of hydrophobic or water-hating compounds) will help spray or splashes bead up and run off of the fabric. The exterior of the fabric is siliconized, which will cause spray/splashes to bead up and run off anyway. The sprays will not damage the fabric.

      But – no spray will make the fabric more waterproof in the sense of being submersible. Which leads me to wonder: what kind of use do you have in mind for the UltraSil Dry Sacks? Please email me directly at info@seatosummit.com – I’ll be happy to make recommendations as to how to get the best from your gear.



  17. Just purchased a LARGE/WIDE (Wiggy’s) 0 degree synthetic bag, and am looking for the right compression sack for it. What size of eVent compression sack does the trick on this behemoth? Thanks!!

    1. G’Day!

      The quickest way to determine the size of compression sack you would need for a sleeping bag is to measure the supplied stuff sack. Wiggy’s doesn’t list the stuff sack size for their sleeping bags online – if you email me the dimensions of the stuff sack at info@seatosummit.com I’ll give you a definitive answer as to the size of eVent Compression Dry Sack you’ll need.
      One point worth noting – if you really are using gear (tents, sleeping bags etc) in a 0*F / -18*C environment, always opt for a larger size stuff/dry sack: you’ll appreciate the extra room when you’re stuffing cold-stiffened gear with chilled fingers.



  18. I love your dry bags. Is your waterproofing permanent, meaning with proper care and storage will I ever have to re-water proof it? I assume that the lamination is permanent and the fabrics themselves have no expiration date, so then I would think the shelf life is that with good care they can last a lifetime. Am I correct?

    1. G’Day Kartik

      – Keeping a dry bag clean prolongs its life significantly. Fine-grain sand wears away fabric fibers and coatings/films. Oils make coatings and films porous. Any number of solvents (including DEET, alcohol and gasoline) can destroy the waterproofing completely. To clean, only hand wash the dry bag using warm water and non-detergent soaps.
      – Ensuring that the dry bag is stored in a dry, ventilated space will prevent mold and mildew. Constant dampness can damage polyurethanes; they become soft and sticky – the coating/film will therefore lose its waterproofing capacity.
      – Ultraviolet Light weakens nylon fabrics over time. Expose the dry sack to as little UV as possible during use and store in a sheltered spot.
      – Heat can damage the seam taping: avoid contact with very hot (above 60°C) water, or exposure to direct sunlight in a parked vehicle.

      If a dry bag is used / cleaned / stored with attention to the above factors, it will last many, many years – certainly 20 years is not an unreasonable lifespan.

  19. Hi Baz! I bought a 2degree Sea to Summit Down Bag in Australia before I came out to Canada. Yesterday I washed it in warm water in a front loader machine with 80mls of nikwax. I carried it in a bundle to the tumble dryer and spun it for 2 hours with 2 tennis balls. The loft is nice and fluffy but certain sections are completely without loft. It seems the loft has migrated completely into other sections. There is stitiching between the different sections so I’m not sure how this happened. Is there any way I can fix this? I Paid 500$ for this bag.
    Thanks So Much.

    1. Hi, Kila

      The overwhelming likelihood here is that a baffle has been torn out due to the bag being picked up while the down was wet. Washing the bag as you did in a front-loader washing machine (providing it was washed on a gentle cycle) should not have caused this to happen, neither should drying it in a tumble dryer.

      (We recently posted an article explaining the necessary caution on this blog

      A torn baffle can be repaired, although the cost of the repair will depend on the model of bag you own.

      If you email me at info@seatosummit.com I’ll be happy to provide you details of how to have the bag repaired in Canada



  20. hi baz, just wondering if the sea to summit pack taps are bpa free as i cant seem to find that information?

    thanks 🙂

  21. I have one of your products that is a duffle dry sack that had the strap torn off during its first use on the airlines. Can this be replaced or repaired?

    1. “G’Day!

      Sorry to learn that your Duffle is looking a little worse for wear. It’s possible that it can be repaired – this will depend how seriously the product has been damaged.

      Please send an image showing the damage to info@seatosummit.com and let us know in the email where you live and where you purchased the Duffle.



  22. Can the XBowl be used in cooking over a fire or will I have to purchase a pan separate from the three or two piece XSet.

    1. G’Day CJ

      thanks for taking the time to check in with us about using an X-Bowl to cook over an open fire.

      The base of the X-Products (X-Bowl, XL-Bowl and X-Plate) is made of food-grade nylon, which has a melting point of approximately 250°F / 160°C.

      A good camp fire will have a temperature many times hotter than this, and would melt the nylon in a matter of seconds.

      So – if you’re sitting and watching and waiting ’til your billy boils (ie cooking over a campfire) – you’ll need metal pots and pans.

      cheers, B

  23. Hello, i have a little cigarette burned hole in my Trek I sleeping bag. how can i seal it?
    thank you for help
    kindest regards, jakob

    1. G’Day, Jakob

      You can repair a small hole such as a cigarette burn in the shell fabric of a sleeping bag by using a product from McNett called Seam Grip, which you can buy in all good outdoor stores.

      Clean the shell fabric around the hole using isopropyl alcohol, then drop a blob of the Seam Grip directly onto the shell fabric so that it overlaps the edges of the hole. Make sure that nothing else comes in contact with the Seam Grip while it dries (18 – 24 hours), otherwise it will stick together and be very difficult to separate.

      If you need any more details, just drop us an email at info@seatosummit.com



  24. What are your recommendations for cleaning the big river dry bags? My husband and son just got back from a camping trip and the bags are very dirty.

  25. Is it possible to order a new valve/tap for the 4L pack tap? Because mine is broken after heavy usage. If yes, where?

  26. He i have a dry sack that i have had less then a year. It seemd to leek so i filled it wirh water and the bottom had a bunch of tiny pin holes any sugestions on what to do ?

    1. G’Day Josh

      sorry to learn that your dry sack is looking a little worse for wear. You didn’t mention which kind of dry bag you have (UltraSil, Lightweight, Big River etc), or what it has been used for – can you email us at info@seatosummit.com and let us know the type of dry bag and the kind of use to which it has been put? We’ll be happy to make recommendations.



  27. Just finished a tough 5-day trip through the Beartooth Wilderness in Montana. Used the 10L Pack Tap each night to store filtered water from the many lakes for our group of 7. It worked brilliantly and made for some happy thirsty hikers. Two questions: how do I clean/sanitize the bladder (cap of bleach with several L of water?) and is the bladder replaceable? Thanks for all the great products! We had numerous S2S products on this trip and every one of them proved to be a star.

    1. G’Day Douglas

      thanks for writing to us about your Pack Taps, and thanks for the positive feedback on the Sea to Summit products you used. Glad to know our gear worked well for you!

      We would not recommend using bleach to sterilize the bladder; it could be difficult to completely remove the bleach taste afterwards. The best method to clean the bladder is to wash it with warm water (not above 60°C / 140°F) with dish soap and rinse it thoroughly. If the bladder has become contaminated with (for instance) fruit juice, or you need to clean it more thoroughly, use the effervescent tablets sold for cleaning/sterilizing dentures, then wash it with dish soap and water.

      We carry the bladders as a spare part in the unlikely event that one should fail. If you should need a bladder, drop us a line at info@seatosummit.com



  28. Hi, my 10 year old is going to a 5-day outdoor education trip. I wonder what size of dry sack should he bring for storing dirty clothes and underwear? Any insight will be appreciated. Thanks much. JD

    1. G’Day JD –

      thanks for your question. I would think that a 13 Liter Lightweight Dry Sack would be a good size for storing dirty clothes. It can also be used for a number of other functions, including keeping a three-season sleeping bag dry, and providing storage for a day’s worth of hiking necessities (shell jackets, fleece jackets, lunches etc).

      I trust this helps



    1. G’Day Ryan

      thanks for checking in with us regarding our Specialist Solo and Duo Shelters. These products are manufactured in China.

      We refer to them as ‘shelters’ rather than tents to help differentiate between these two very different types of products. Which invites the question: what use did you have in mind for the Solo or Duo?

      Please drop me a line at info@seatosummit.com (put Ask Baz – Specialist Shelters in the subject line), and I’ll be happy to make recommendations as to whether these shelters are suitable for the type of use you envisage.



  29. I have a Big River Dry Bag and think that it is a great product. I am looking for a strap of some sort that I can use to carry it on my shoulder or cross body. In looking at your website, the Solution Gear Paddle Leash looks like it would be ideal, but there is no second fastener. Can you help?

    1. G’Day Rob
      Thanks for your question about making/utilizing a carry strap for your Big River Dry Bag. The Paddle Leash probably wouldn’t work well for this application – it would be too narrow to be comfortable on your shoulder(s).
      The best way to carry a Big River Dry Bag is to use 25mm / 1 inch webbing with a nylon hook at each end. Clip the hook into one of the ‘D’ rings attached to the roll-top closure, then run the webbing down to the lower lash patch on the side of the dry bag leaving enough slack to slide your arm/shoulder in. Continue running the webbing across the back of the dry bag through the opposite lash patch, and up to the ‘D’ ring on the other side of the roll top, again leaving enough slack for your arm and shoulder. You can buy webbing and nylon hooks at any good outdoor store – it would be relatively simple to sew the hooks onto each end of the webbing (if you don’t have access to a sewing machine, a gear repair facility could do this quickly and inexpensively).
      I trust this helps – if you’d like more details, drop me a line at info@seatosummit.com – please put ‘Big River Carry Strap’ in the subject line.

    1. G’Day –
      Sorry to learn your X-Plate is looking worse for wear. If the cut is somewhere within the sidewall (rather than at the top rim of the sidewall), and is less than 1” / 25mm in length, you can repair the damage using some isopropyl alcohol, masking tape and a liquid silicone sealant such as Sea to Summit Ultra Seam-Sil or McNett Sil Net.
      Clean the damaged area with isopropyl alcohol
      Stick a strip of masking tape over the damaged area on the inside of the plate
      Secure the plate in such a way that the damaged area is at the top and horizontal. Now drop a blob of the silicone sealant onto the cut, enough so it overlaps the damaged area by about 3/8” or 10mm.
      Allow the silicone sealant to dry thoroughly (at least 18 hours; longer in a humid environment)
      Peel off the masking tape
      The plate should now work fine.

      If the cut goes through the top rim of the sidewall, it’s not really possible to repair the damage.
      I trust this helps – if you’d like more details, drop me a line at info@seatosummit.com – please put ‘X-Plate repair’ in the subject line.

  30. So my buddy and I drank some whiskey in our xcups during our last camping trip…..and days later we cant get the whiskey smell out. We’ve tried detergent, soap, baking soda, vinager, degreaser and nothing seams to work. Any ideas on how to get odors out of the silicon?

    1. G’Day Alex –
      We’ve not received any reports of odors being retained by the silicone rubber of the X-Products. The one exception to this has been in cases where there has been a residue which has been left on the surface of the silicone; usually proteins (from eggs) or sugars (which could come from any sweetened drink).
      The important thing is not to damage the surface of the silicone when cleaning it: if you use a scouring sponge, it can cause tiny scratches which provide a micro environment for residues to collect.
      Otherwise, you’ve done everything we would recommend – using dishwashing soap & hot water, followed by baking soda and vinegar (or lemon juice).
      If you still have the odor, drop me an email at info@seatosummit.com (put X-Cup Odor in the subject line) and I’ll look for a creative solution.



  31. This summer I purchased a Hanging Toiletry Bag. It worked great but now it is a bit dirty. May I wash it in the washing machine? In low temperature (30C), of course?

    1. G’Day Magdalena

      thanks for your question regarding washing instructions for your Hanging Toiletry Bag

      You can wash the Travelling Light products in a washing machine (in Europe, almost all machines are front-loaders which are gentle enough not to damage the lightweight fabrics).

      You still need to take care, however – the Hanging Toiletry Bag has a nylon hook which could snag on something during the wash cycle which would damage the bag. If you do use a washing machine, it’s best to put the Toiletry Bag inside a pillow case to prevent this from happening. Close all the zippers, and wash at very low temperature – less than 30°C if possible.

      Otherwise – hand washing is always the safest way to go.

      If you have further questions, please shoot us an email via info@seatosummit.com


  32. Hello, I have a few questions about the Rapid 26L DryPack I hope you will answer…

    1. I’ve been looking at the DryPack and Patagonia Stormfront waterproof packs. Can you provide any insight into why S-to-S constructs the DryPack with sewn and taped seams rather than welded seams?

    2. Also, Patagonia uses 800-denier fabric in its waterproof packs while S-to-S uses 420-denier in the Rapid. Again, do you have any information on why 420-d was selected for the Rapid?

    3. Does the Rapid’s fabric have a PU exterior coating (or DWR finish) and a single-side interior TPU-coating, like Patagonia uses? Or is the fabric only coated on one side?

    4. Does S-to-S have a lifetime warranty program?

    Sorry for the deep dive into details but I’m trying to get a feel for the tradeoffs (if any) of choosing one pack over the other. Thanks for any help you can provide!!!

    San Francisco, USA

    1. G’Day Saranjit –
      Thanks for taking the time to write to us about the Rapid 26 Liter Drypack.
      Here are some answers to your questions:
      We selected the 420D material because it had performed so well in the Big River Dry Bag range. Being a woven fabric, it’s much more flexible than the laminates used in some heavier-duty dry bags (and in the Patagonia Stormfront packs), and thus is ideal for a fully-featured backpack with a simple-to-use roll-top closure. The Stormfront is a simpler, single chamber pack, which is heavier than the Rapid (the Rapid weighs 27oz / 760g). The 420D fabric has a white –colored TPU film laminated to the inner face. It does not have an exterior coating, and thus cannot be welded – hence the sewn/taped construction.
      The Carve/Rapid and Flow are staff favorites here – we had a Carve and a Flow with us on our last equipment test (conducted while skiing in the Indian Peaks Wilderness). We like them because they have a really comfortable harness, and they’re very light (especially given how tough they are). Like all Sea to Summit products, they are warrantied for life against manufacturing and material defects.
      Patagonia makes excellent products – we would see the 35 Liter Hydraulic Dry Pack as a closer ‘alternative’ to the Stormfront, depending of course on what you have in mind to use the pack for. If you drop me an email at info@seatosummit.com I’ll be happy to provide more detail.

      1. Thanks for the detailed reply. I just wanted to let you know I’ll be buying a Rapid, your info makes it clear it is better suited for my needs (trekking + daily urban use). When combined with the S-t-S warranty (BTW your website should feature the warranty, it’s a major selling point!), the choice became easy.

  33. I got some Wilderness Wash for an upcoming trip to Belize. I plan on using it for hand washing laundry, but also hoped to use it in a washing machine if we end up where that’s an option. How much Wilderness Wash should I use for a load of laundry in a washing machine?

    Also, I found a neat product called a Scrubba Portable Washing Machine, which is basically a dry bag with a flexible washboard in it to help clean clothes. I figured I could use any dry bag and get similar results (though without the portable washboard), and I bought a 20L Sea to Summit Ultra-Sil dry bag for the job. Then I read that it isn’t waterproof when submerged, which makes me think that it will leak or seep water if I am doing laundry in it. Will the bag I got work for that, or is there another S2S product that would work better?


    1. G’Day Brian

      Here’s the story with using Wilderness Wash in a washing machine: a sink full of water is about 2 gallons / 10 liters. A front loader washing machine uses about three times this amount for the wash cycle; a top loader washing machine uses about ten time this amount. So – depending on the type of washing machine, you’d need a fair amount of Wilderness Wash to wash a full load. Fortunately, if washing machines are available, laundry detergent (referred to as laundry ‘soap’ in the US) is usually to be had, too – using this will save your precious Wilderness Wash for the occasions when you need portable, concentrated biodegradable soap.

      As to the Scrubba and the comparison to a Sea to Summit dry bag, let me just start by clarifying the submersion advisory which appears on Sea to Summit dry sack packaging. We print this advisory to alert consumers to the fact that NO ROLL-TOP DRY BAG (REGARDLESS OF BRAND) IS COMPLETELY WATERTIGHT – so in situations where a dry sack might become submerged, we urge users to ‘double bag’ any electronics or other sensitive items. THIS DOES NOT MEAN THAT SEA TO SUMMIT DRY BAGS ARE LESS WATERPROOF THAN OTHER BRANDS – THIS ADVISORY APPLIES TO ALL ROLL-TOP DRY BAGS. But, yes, if one of our dry bags was filled with water and agitated (as you would do when washing clothes), it’s possible that some water would seep out through the roll-top closure. This is also true of the Scrubba (we’re very impressed by the Scrubba, by the way).

      With regards to the choice of dry bag, I wouldn’t have recommended the UltraSil Dry Sack for the use you’re suggesting – the featherweight 30D fabric would not be ideal for dealing with the mass of water, soap and the occasional hard object (such as a zipper) being smooshed around inside it. For reference sake, the Scrubba is a 70D fabric. The dry sack I would have chosen would be the Clear Stopper Dry Bag, which would deal with the rigors of doing laundry very well. You would not have the ‘washboard’ of the Scrubba, nor the purge valve which lets out the excess air, however.

      I trust this information helps – if you have further questions, shoot me an email at info@seatosummit.com (please put ‘Scrubba’ in the subject line)



  34. I want to purchase the pocket laundry was leaves and I’m wondering how many garments 1 leaf will wash? Can I was a load of clothes with 1 leaf or is it 1 leaf per garment?

    1. G’Day Jo

      Thanks for your question. The leaves of Trek & Travel laundry soap are designed for hand washing garments, which is usually done in a sink. An average sink is approximately 2 gallons / 8 liters of water, and depending on the harness of the water 1 – 2 leaves would wash a sink-full of garments.

      [Water hardness is a factor of how much limescale is in the water: in areas where there is a lot of limestone, the water is described as ‘harder’, which means you need more soap to achieve the same result]

      The key to effective hand washing is the amount of mechanical agitation you can provide – which is why ribbed ‘washboards’ were once used.

      Occasionally we get asked if you can use the leaves in a washing machine. A top-loader washing machine uses as much as 25 gallons / 90 liters; a front-loader machine 8 gallons / 30 liters for its wash cycle – so you would need maybe a dozen leaves for a top loader and four or five for a front loader.

      Machines in Laudromats often have quite a lot of detergent residue left in the soap compartments, so you may not need to add very much in the way of Laundry Soap.

      I trust the above information helps



    1. G’Day Ella
      Sorry to learn that you’ve got some grass trapped in the fibers of your Tek Towel. The most effective way to remove this would be to use an adhesive roller (referred to as a ‘lint roller’ in the US).
      I trust this helps – let us know if we can be of further assistance

    1. G’Day Kelsey
      All Sea to Summit products are warrantied against manufacturing and material defects for the life of the product. High quality materials and manufacturing techniques, and strict quality control mean that product failures are extremely rare.
      If you’d like further information, please drop us an email at info@seatosummit.com


  35. i have an expensive leather briefcase that i need to cover when i get caught in the rain, what product can you suggest? it is 16″ x 12″ x 4″ it has to be light weight and durable and able to fold up and store in the briefcase

    1. G’Day Tom

      Thanks for your question. Sea to Summit doesn’t have a product which would be a perfect fit to protect your briefcase – the closest would be our 70D Nylon Pack Cover in size XXS.

      This product is designed to cover a small cycling backpack. The overall dimensions would be close enough, but of course, it does not have a side opening to allow the handle of the briefcase to project through, and this would limit the amount of waterproof protection it would provide.

      (If the pack cover were cut and sewn to provide a handle-entry, that would invalidate the product warranty. Given the value of the briefcase, you might regard this as a reasonable option – any good gear repair shop should be able to undertake the modification)

      I trust this helps



  36. I’m trying to find out if the dimensions (11″ x 7″) x 24″ given for the Sea To Summit Hydraulic Dry Bag 20L are when the bag is flat or when it is filled and closed?

  37. Hi Baz,

    I recently bought the 1.8mm reflective accessory cord to tie down a 10’x12′ tarp that would have 7′ poles at each corner. Do you know the breaking strength of this cord and would it be suitable to tie down my tarp?

    Thanks Dale.

    1. G’Day, Dale

      Thanks for taking the time to write to us about the 1.8mm Reflective Accessory Cord.
      I don’t have a breaking strength figure for this cord, but in my experience:
      a) Guylines usually fail at the point where they are knotted, and the pure tensile strength figure wouldn’t take account of this
      b) Particularly with shelters which offer a significant potential for wind load (ie a large tarp), it’s actually advantageous if the guyline fails rather than transmitting the load to the shelter and causing the shelter itself to fail
      The breaking strain of the 1.8mm guyline will be high enough so you need not worry about failures in normal use. However, unlike a material such as Kevlar or Dyneema, the polyester will stretch under load and would probably fail before damage occurs to your tarp.
      So – the 1.8mm Reflective Accessory Cord would be ideal for pitching a tarp.


  38. Hello,
    I just purchased a Traveling Light Combo Cable TSA lock. I reset it to a specific and easily remembered code. A few minutes later I tried to take it off, but it will not work on the code I set it for, or for the default 000 combo. I’m wondering if it’s just completely jammed. Any suggestions?

    1. G’Day Sheryl

      Sorry to learn that you’ve run into difficulties with your Travelling Light Combo Cable Lock.

      It’s probable that the internal mechanism moved one digit off of the code you had chosen during the setting process. If this is the case, you should be able to try the combination, varying one digit up or down from your chosen code. It’s a little time consuming, but this should fix the problem.

      Alternatively, simply return the Lock to the retailer where it was purchased for exchange – we can help you with this (you’ll find our contact phone number on the seatosummit.com web page)

      I trust this helps



  39. Does your hard anodised aluminum cutlery have anything infused or added to the surface such as a polymer etc. or is it straight hard anodised aluminum(aluminum oxide)? Cheers

    1. G’Day Shane

      Thanks for taking the time to write to us about our Alpha Light / Alpha Cutlery. The outer surface is just a hard anodisation; there is no polymer added.

      Please note that the anodisation would be damaged if the Alpha cutlery were to be washed in a dishwasher – the caustic dishwashing ‘soap’ will strip the anodisation from the surface of the aluminium.

      Alpha cutlery has proved to be extremely popular as a result of its light weight and relatively low cost compared to titanium. However, you may care to consider the glass-reinforced nylon 66 Delta Cutlery Set as an alternative.



    1. G’Day Melissa
      Thanks for your question about the down used in our range of sleeping bags.
      Sea to Summit sources down from one of the industry’s foremost down suppliers, and ensures that each down shipment is accompanied by certification that the down has been ethically sourced.
      Along with a number of other leading outdoor companies who use down products, Sea to Summit is supportive of efforts to implement uniform, verifiable standards for ethical down production which exclude live plucking and force feeding of waterfowl.

  40. Hi, I’m trying to fold my Big River sea to summit bag to fit it in the original plastic sleeve it came in. Please help. The lash loops on the sides seem to be stressed when I fold it for storage in the plastic sleeve. Any ideas on how to store my Big river dry bag? Thanks

    1. G’Day Chris –

      Thanks for your question about storing your Big River Dry Bag.

      It is possible to fold the Big Rivers so the folds run either side of the lash patches; if folded in this way the dry bag is flat enough to slide into the polypropylene sleeve quite easily.

      However – once they’ve been used, we would not recommend storing dry bags in their packaging. It is far better to store *any* outdoor gear which uses a coated or laminated fabric just folded loosely. This is because any residual moisture / humidity from the air left on the polyurethane coating (or in the case of the Big River bags, on the TPU film) can cause the urethane to become soft over a prolonged storage period. If the item of gear is packed away folded or rolled tightly, the parts of the coating or film which are touching can stick to each other, and this can cause damage when the product is unpacked. If the product is loosely packed, air can circulate which prevents this from happening.

      Probably the product which is most susceptible to this would be tents, which have large expanses of coated fabrics, are often not adequately aired before storage, and sometimes are packed away rolled tightly. But – it can affect dry bags, too.

      Storing in a cool, dry place is the other key factor in maintaining you gear’s performance.

      As always, if you’d like additional information, just ask



  41. Hi, we have the Sea to Summit 10 litter bladder with tap, re-filled twice now, but on our last attempt to empty and refill, we found that we still have about a a litter and a bit in weight left inside, that we can’t get out, we did everything to the point of ripping it apart to figure out how the water has become trapped. have you heard of any such problem before? as a solution would be appreciated,



    1. G’Day Ross

      Sorry to learn that you’ve experienced a problem with the bladder of your Pack Tap.

      The Pack Taps use a double Mylar bladder. It’s pretty rare for a failure to occur, but evidently, the inner bladder of your Pack Tap has leaked, causing water to become trapped between the two layers.

      We keep spare parts for this (and just about every other Sea to Summit product) – if you email us your mailing address (please use info@seatosummit.com and put the words ‘Pack Tap Bladder’ in the subject line), we’ll be happy to send you a replacement free of charge.



  42. Hi I’m from Chile but I’ll move to Sydney for two years. I have the Talus TSIII Sleeping Bag and I was wondering if it’s appropiate for Sydney surroundings or is too warm?



      1. Thank for your answer. The thing is that I don’t want to carry more than one sleeping bag, which one do you recommend?



    1. G’Day Philip,

      The best method to clean the bladder is to wash it with warm water (not above 60°C / 140°F) with dish soap and rinse it thoroughly. If the bladder has become contaminated with (for instance) fruit juice, or you need to clean it more thoroughly, use the effervescent tablets sold for cleaning/sterilizing dentures, then wash it with dish soap and water.

      We carry the bladders as a spare part in the unlikely event that one should fail. If you should need a bladder, drop us a line at enquiries@seatosummit.com.au (in Australia) or info@seatosummit.com (in North America)



  43. Hi,
    I’m from Russia. I have Hydraulic Dry Pack 65L and The 35 Litre Flow Dry Pack.
    Can I use them in salty seawater and be assured of 100% waterproof?

    1. G’Day Edward

      Thanks for contacting us about using the Hydraulic Dry Pack and the Flow Dry Pack in saltwater conditions.

      Both products will remain waterproof in saltwater. As with all gear used in such conditions, it is advisable to regularly wash the Dry Packs (particularly the Flow) after use to remove the salt from the laminate – just hosing the pack down thoroughly will work. Ensure that the Dry Packs are thoroughly dry before storing them.

      In respect to the phrase ‘100% waterproof’, please also note that all Sea to Summit roll-top dry bags/dry sacks carry an advisory: correctly sealed they should keep water out in normal watersport conditions, however, they are not designed for submersion use.

      I trust this information is helpful; if you would like further details, please email us at marketing@seatosummit.com



  44. I recently purchased the Trek 3 – Long and it came with a large vacuum seal plastic bag, a storage cell and a compression sack. In regards to storing the bag when not in use, it says that its best to leave the bag in the storage cell, but is that with the storage cell unzipped up or with the cell opened right up? Also what’s the large vacuum seal bag for? Is it for any specific reason?

    1. First of all, congratulations on the purchase of your Trek Tk III sleeping bag. We’re confident that it will provide excellent performance across a wide range of temperatures.

      For storage, fold the Trek gently together and pack it in the zippered storage cell. There is enough room in the cell so you can zip it up without comprising the loft of the sleeping bag. Make sure the place you store the sleeping bag is dry – a closet is preferable to a garage in this respect.

      The vacuum seal bag is only intended for shipping to keep the bag clean and prevent unnecessary moisture coming into contact with the sleeping bag. You can use it for storing clothing or other household items.



      1. Fantastic! Thanks for clearing that up for me, its seems rather obvious now 🙂
        I really cant wait to take the amazing Trek 3 out for a test run this long weekend.

        Thanks for getting back to me so quickly.

        Kind Regards,

  45. I have read the directions and guidelines online for the sea to summit pot and kettle, and I understand that they should only be used on “camping stoves”. However, does this refer only to backpacking stoves, or can these products be used on a standard two-burner propane car camping stove? Your online directions make it sound like this should be possible as long as the flame isn’t blasting high, but I have read mixed information online and wanted to be sure before buying that I can use them on my car camping stove. Thanks!

    1. G’Day Sarah

      Thanks for checking in with us about the se of our X-Pots and X-Pot/Kettles with a two-burner ‘camping’ stove.

      The key factor is to make sure that the flame pattern from the burner stays within the circle printed on the base of the pot – if you do this, the X-Pots and X-Pot/Kettles can be used without problems on almost any backpacking and camping stove. (The few exceptions to ‘any’ backpacking or camping stove include stoves which burn wood or other naturally occurring fuels and those gasoline/white gas stoves which cannot be effectively regulated to burn with a lower flame). Domestic stoves have a higher output than camping stoves, and may damage X-Pots and other lightweight camping cookware.

      The other factor to be aware of is that the lightweight anodized aluminum base of the X-Pot series transmits heat very well. It is therefore not necessary to run a stove at as high a setting as you may be used to – you will simply burn more fuel without speeding up the boiling process.

      Some other things to be aware of:

      – If you are using the Pot/Kettle, keep the handles in the upright position while boiling – this will prevent any possibility of heat affecting the handles. Once you have the stove turned down to a simmer, the handles can be safely used in the horizontal position
      – If you are using the X-Pots, do not attach the silicone rubber handles to the tabs on the lid while cooking – this can cause the lid to warp. This feature is only designed to secure the lid to the pot for transport (useful if you have ‘nested’ bowls or cups inside the pot)

      I trust the above information is helpful – you might care to read our blog post here for further details.



  46. I just purchased X-Pot 2.8L and try to heat vacuum-packed soup through boiling water.
    But unfortunately, due to the vacuum packing it too big to let the lid uneven, one side of the lid is sunk into the boiling water, the lid was deformed.
    So I would like to ask where I can find the lid only from market or from Seatosummit?

    1. G’Day Rossi

      Sorry to learn you’ve experienced a problem with your X-Pot Lid.

      Most Sea to Summit distributors around the world carry the lids as a spare part and would supply one to you free of charge.

      All we would need to know is where you’re located (city/state/country) – please drop us an email at info@seatosummit.com We’ll be happy to assist you further.



  47. Now, I am looking at the escapist 15d tarp. And just one question!
    About UV protection of this tarp : how well dose this tarp protect from UV??

    1. G’Day Shim

      Thanks for asking about our Escapist Tarp.

      We have not tested the fabric specifically for UV protection, so I’m unable to give you an SPF number for the Escapist. In testing, my colleagues report that the tarp casts an effective shadow which creates a pleasant shaded environment when it is sunny.

      However – as with any ultralight shelter, we would advise against prolonged exposure to the sun: the UV rays will negatively impact the fabric and its coating over time. Occasional use in strong sunlight is not an issue, but if you are camping in very sunny conditions it is advisable to take down the tarp during the day to minimize UV exposure.

      I trust this is helpful – if you would like additional details, please email us at info@seatosummit.com and put ‘Escapist Tarp – UV questions’ in the subject line.



  48. G’Day John

    Thanks for asking about re-sealing the seams of an eVent product.

    You do not mention which eVent product you have; if it comes from Sea to Summit it would either be the 70 D nylon eVent Compression Dry Sack or the 30 D UltraSil Compression Dry Sack.

    The short answer to your question would be that you would not need a silicone repair compound such as McNett Sil-Net – the interior coatings of the two products mentioned above are polyurethane. You could therefore use a urethane repair compound such as McNett Seam Sure which is much less messy and easier to apply. (This would also be true for all eVent clothing and shelters; the inner faces of which are not siliconized).

    The longer answer is that if you have a Sea to Summit product where the seam taping has failed, we would want to examine it to determine the cause of the seam tape failure. Seam tape delamination on our eVent Compression Dry Sacks is essentially unknown – the only exceptions to this are
    1) contact with solvents such as DEET or alcohol and
    2) mold or mildew compromising the coating.

    So – if the piece of gear you are enquiring about comes from Sea to Summit, we would want you to contact us so we can determine if it falls under our lifetime warranty against manufacturing and material defects (we’d be happy to provide you with details about this warranty) – please shoot us an email at info@seatosummit.com

    We would appreciate detailed images of the product, your contact information and details about where and when the product was purchased – please put ‘eVent seam tape issue’ in the subject line.

    I trust the above is helpful



  49. Hi,
    I bought the TREK II and i want to wash it but i didn’t understand the instructions on the washing bag. Please can you send me the instructions in french because my english is so bad. Thank you.

    Antoine Mazauric

    1. Bonjour Antoine,

      Mes excuses pour le retard dans la réponse.

      Mes collègues au Sea to Summit distributeur française auront une traduction des instructions de lavage pour votre sac de couchage par jeudi de la semaine prochaine .



  50. I just purchased the 10′ Carabiner Yie Downs. Are there instructions available? I want to make sure I am using them correctly. Thanks

    1. G’Day Sean –

      Sorry for the delay in replying.

      The Carabiner Tie-Downs are very easy to use in one of two ways:

      – Form a loop at one end of the tie down (running the strap around a piece of gear or around a fixed point then securing it to the rest of the strap using the carabiner.
      – Securing the strap directly to a fixed point using the carabiner.

      In both cases, the other end of the strap will be fed through the strap buckle.

      The illustrations found here: https://drive.google.com/open?id=0B8RDTkrEGhc2MGNSSnFWMVNIbkU should clarify the above – please let us know (via info@seatosummit.com) if you have additional questions



    1. G’Day!

      The process for packing any Sea to Summit sleeping bag in its supplied compression sack is as follows:

      – Stuff the sleeping bag into the compression sack; do not roll it up first. Rolling a sleeping bag results in a bulkier packed volume; it also means that the down in the foot section is compressed to a greater degree than the torso section, and this can compromise the loft of the down.
      – Begin by pushing a section of the sleeping bag as far as possible into the base of the compression sack, then sequentially push more of the sleeping bag into the sack. It will fit!
      – If you have cold or wet fingers, this process may be more difficult than otherwise. Spraying the inside of the compression sack with a pure silicone lubricant https://www.mcnett.com/m-essentials/silicone-spray#20410 can help.

      The compression sack is designed to fit the Spark Sp II snugly, but not excessively so. If stuffing the Spark into the compression sack should continue to prove a little tricky, drop us an email at info@seatosummit.com Put ‘Spark Sp II / Compression Sack’ in the subject line, and let us know your full address and the name/location of the store where the Spark was purchased.



    1. G’Day Dan

      Thanks for your question regarding the ‘quilt’ upper section of the Basecamp Bc II sleeping bag.

      The Bc II ‘quilt’ has approximately the same overall weight (and a similar down fill weight) to the Ember Eb II Quilt.

      The Eb II Quilt is rated down to 25°F / -4°C; so you should expect a similar range for the Bc II quilt. Please note that quilts cannot be tested according to the EN 13537 rating system which applies only to sleeping bags; so these figures have been estimated by Sea to Summit.

      (it’s also worth mentioning that at temperatures around or below freezing, the insulation value of the sleeping mat used with the quilt or sleeping bag assumes a greater importance. If you were to use the Bc II quilt in temperatures down to 25°F / -4°C, you would need a sleeping mat with a tested R-Value of at least 3. We would encourage you to read the following two blog posts for information on sleeping mats:




  51. Hello!
    I own the Spark SP III sleeping bag and am going to use it in winter hiking adventure. I have the following question/concern.
    It is known that when using a sleeping bag in low temperatures (e.g. below zero Celsius), its outer surface may become wet with a condensed water during a night. Is this something I should expect with Spark SP III? And, most importantly, if it happens, how would it affect the sleeping bag? Is it something this sleeping bag is designed to deal with?

    Thank you!

    1. G’Day Ivan,

      Thanks for checking in with us about using the Spark Sp III on a cold-weather adventure.

      As you note, condensation forms on the shell material of all sleeping bags in colder conditions (particularly below 0°C).

      Some of this condensation occurs on the outside of the sleeping bag shell – the majority of this will come from expelled breath, especially in a tent which is not adequately ventilated. It is down to the end-user to balance ventilation and heat-loss in a tent in the winter.

      Some of the condensation occurs in the inside of the sleeping bag shell. This occurs as a result of the sleeper perspiring – that perspiration is in the form of moisture vapor, and it is relatively warm. The perspiration makes its way towards the outside world due to the temperature gradient (it is warmer inside the sleeping bag than outside). However, when it touches the cold shell of the sleeping bag, it will condense. If the outside air temperature is cold enough, this now liquid moisture will freeze on the inside of the shell.

      (Some sleeping bag manufacturers or website copywriters claim that a particular shell fabric is so “breathable” that condensation will not form. This is nonsense which contradicts the laws of physics: warm moisture vapor touches cold surface = condensation)

      So – you will definitely get moisture on the inner face of the Spark Sp III shell (as you would with any other sleeping bag).

      Fortunately, the down used in the Spark (and in all Sea to Summit sleeping bags) is UltraDry Down treated; so it will not absorb very much of this moisture.

      The key thing is to air out your sleeping bag every morning, whenever possible. In winter, with colder air temperatures and possibly unfavorable weather you may not have much opportunity – but you should make this a priority in the mornings as soon as you have emerged from your sleeping bag.

      I trust this information is helpful – check our blog posts https://askbaz.wordpress.com/2011/12/14/what-to-pack-for-winter-backpacking-part-1/ and https://askbaz.wordpress.com/2011/12/22/what-to-pack-for-winter-backpacking-part-2/, make sure you have a sleeping mat with an adequate ‘R-Value’, and if you have more questions, email us at info@seatosummit.com and put “Winter tour” in the subject line.



  52. Will there ever be a lid made for the x cup and x mug? I would love a snug fitting lid with a small x-cut opening for a straw. Would be great for kids too.

    1. G’Day Rudy

      Thanks for asking about a lid for the X-Cup and X-Mug. You will be glad to know that we have just launched versions of our X-Cup, X-Mug, X-Bowl and XL-Bowl under the name ‘X-Seal & Go’.

      These products feature a nylon rim with a built-in screw thread and lids with a silicone ‘O’-Ring which screw in to form an airtight, spill-proof seal.

      They are currently exclusively available at REI (here is the link to the X-Mug-sized version) https://www.rei.com/product/111938/sea-to-summit-x-seal-and-go-container-medium
      (they will be available through other retailers in Spring 2017).

      Please note that lids cannot be ‘retro-fitted’ to existing X-Cups/Mugs/Bowls.

      Please also note that the design does not include a hole for a straw or for sipping; the requests we received from end-users were overwhelmingly for a container which would seal completely, in which liquids could be transported.



  53. I have a question about the Aeros Pillow Premium. What is the limit of weight I can put on the pillow without damaging it or compromising the life time. Can I sit or even step on it without any problems?

    1. G’Day Frank

      The bladder of the Aeros Pillow would support the weight of a normal adult (70kg / 154lbs) if it were spread evenly across the whole pillow. Care should be taken to ensure that there are no sharp objects on the surface on which the pillow will be placed before sitting down on it.

      If an end-user were to step on the pillow, this weight would be concentrated into a relatively small area, and could either tear the weld of one of the baffles or damage the bladder.

      We have not tested the pillows for maximum weight; this lies outside of their intended purpose.

      If you would like further information, please email us with specific questions at info@seatosummit.com and put ‘Aeros Pillow – maximum load’ in the subject line.


    1. G’Day Olivia

      Thanks for your question about the mesh filter of the X-Brew.

      Please see the following videos made by our in-house warranty person which show removal and installation of the filter.

      Installation: https://drive.google.com/file/d/0Bwh058Jpt8Ckbnp3NE1RdmpVOGs/view?ts=5991ce99

      Removal: https://drive.google.com/file/d/0Bwh058Jpt8CkZUlJOUkybEJRM1k/view?ts=5991ce99

      Removal: https://drive.google.com/file/d/0Bwh058Jpt8CkU0xpeXFIb3Flbms/view?ts=5991ce99

      If you should have any questions on this, drop us an email at info@seatosummit.com and put ‘X-Brew Filter’ in the subject line



      Barry Robertson :: Minister of Education

      Phone 303-440-8977 | fax 303-440-8995 | barry@seatosummit.com | http://www.seatosummit.com

  54. I love my evac dry sack 13 L but I wish they came in black. i was thinking of dyeing it black. Would this be possible given the fact it is laminated 70 D nylon?


    1. G’Day Kaitlin

      Thanks for the question about dyeing an eVac Dry Sack.

      The eVac Dry Sacks are made of two fabrics: the sides are a 70 denier nylon with a white polyurethane inner coating, and the base is an eVent laminate.

      We’ve never attempted to dye any of our dry sacks, but we suspect that the following will happen:

      The eVent laminate has a DWR finish on the outside which will prevent it from accepting the dye. Depending on how old the eVac Dry Sack is this would result in splotchy patches of grey.
      The 70 D nylon may accept the dye, but it may well only turn the nylon a darker shade of grey. The PU coating on the inside will turn from white to dark grey.

      Most domestic dyes do not contain compounds which would cause the coating or laminate to delaminate; although some dyes require heat to ‘set’ the dye and this could well damage the seam tape.

      The dyeing process would definitely invalidate the warranty; we would definitely recommend against attempting it.

      We would love to hear more about what application you have in mind for a black eVac (or other) dry sack – drop us a line at info@seatosummit.com [put ‘black eVack Dry Sack’ in the subject line] and let us know.



  55. Hiya,

    I need a 50mm field repair buckle for my rucksack (a Berghaus Cyclops Vulcan, if you’re interested..), but one side of the existing buckle is sewn into a loop of webbing so I need a buckle with one of the screw in metal bars – but you only seem to do them up to 38mm.

    Any chance you actually do do them, but that I can’t find them on the website?

    I’ve got 8 inches of snow in my back garden, it’s -14c tonight, and schools have been closed for three days so far. Just thought you’d like to know that….

    Phil, in the UK.

    1. G’Day Phil

      I’m sorry to say we don’t make a 50mm Field Replacement Buckle. In most backpack applications, a buckle of this size is threaded – rather than sewn – onto webbing. Yours is something of an exception to this rule, and the relatively small numbers would not justify the tooling costs for a 50mm buckle.

      The largest Field Replacement Buckle we make is 38mm – would it be possible to fold over the webbing to make this fit?

      Enjoy the snow!



  56. My husband has forgotten the combination to his traveling light cable lock. The lock is currently attached to his duffel bag. Is there a way to reset the combination?

    1. G’Day Mercedes

      Sorry to learn that your husband is having difficulties with the combination of his Travelling Light lock.

      The combination can be reset as many times as you like; however, to do so you need to know the current combination.

      For other users, please see the instructions below.

      In your husband’s case, it sounds as if he doesn’t know the combination that the lock is set to. If this is the case, it isn’t possible to reset the combination (as that would defeat the purpose of having a lock – anyone could change the combination at will).

      If the combination isn’t known, please contact us at info@seatosummit.com – put “Travelling Light Lock – combination issue” in the subject line, and let us know

      – Where and when the lock was purchased
      – Your full address and phone number

      We will be happy to try and come up with an ‘out of the box’ solution



  57. Hello,
    I am a happy owner of your ﹰUltralight Sleeping Mat, using it for about a year, nearly on a daily basis. I have one problem though, regarding the valve: I really struggle to open it most of the time (both of the caps). I have considered pulling a thread or thin string through the little loop, but this might actually rip the thin plastic on that bit. I’m also worried that if I pull too hard I might rip the whole valve from the mattress over time.

    Any advice on how it could be easier to open?

    1. G’Day Christoph

      Sorry to learn that the valves on your Ultralight Sleeping Mat are not opening as freely as they ideally should.

      A simple resolution for this issue might be to apply a thin layer of Vaseline to the areas where the outer and inner surfaces of the valve come into contact. Vaseline will not harm the TPU (thermoplastic urethane) material that the valve is made of.

      If it makes it easier to open the valve, you might thread a short loop of 2mm – 3mm cord through the holes in the valve tabs. The TPU material should be more than adequately strong enough for this. Please email marketing@seatosummit.com if you would like pictures that more accurately explain this.

      I trust this information is helpful – please know that if the weld around the valve were to fail (which is extremely unlikely), we would regard this as a warranty issue. In that case, we would put you in touch with Sea to Summit’s European subsidiary in Germany.



Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s