Ultra-Sil Dry Bag
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Why We Like The Sea To Summit Ultra-Sil Dry Bag
Lightweight and waterproof, the Sea to Summit Ultra-Sil Dry Bags are made to keep our gear dry and organized inside a backpack or travel duffel. The translucent fabric lets us see the contents easily while the roll-top closure compresses our belongings and protects them with a watertight seal. These bags are not submersible and not intended for paddling and watersports. However, their 2K waterproof rating and seam-sealed construction keep our clothes, sleeping bags, electronics, and other gear dry when we're out backpacking, bikepacking, or traveling.
Details
- Dry bags for backpacking and land-lover pursuits
- Best for water-tight storage inside a pack or duffle
- Roll-top closure is waterproof and adds compressibility
- 30D Cordura nylon is abrasion-resistant
- Not recommended for watersports
- Item #STSZ08F
- Material
- 30D Ultra-Sil (Cordura nylon)
- Volume
- 3L (183cu in), 5L (305cu in), 8L (488cu in), 13L (793cu in), 20L (1229cu in), 35L (2136in)
- Pockets
- none
- Compression
- yes
- Waterproof
- yes
- Closure
- roll-top
- Dimensions
- [8L] 6.7 x 18in, [20L] 10 x 24in, [35L] 12 x 27in
- Claimed Weight
- [3L] .9oz, [5L] 1oz [8L] 1.1oz, [20L] 1.8oz, [35L] 2.3oz
- Activity
- backpacking, cycling, travel
- Manufacturer Warranty
- lifetime
Reviews
Q&A
Overall Rating
4.5 based on 24 ratings
Review Summary
What do you think about this product?
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Selecting an option will reload the available reviews on the pageMay 20, 2024
Dry bag
[This review was collected as part of a promotion.] I love using dry bags for anytime I travel but especially for backpacking. I used my Ultra-sil dry bag on a trip on the Amazon river in Brazil and it performed as needed! All my stuff stayed dry and I liked having a bright color to differentiate from my other stuff/dry sacks.
Originally reviewed on Sea to Summit
March 11, 2024
Dry Gear
[This review was collected as part of a promotion.] The bags I purchased are light weight and good for a variety of uses: Canoe/ kayak = keeping my lunch dry; Backpacking = carrying day gear to work site as an AT maintainer, picking up stuff off trail, hang bear bag ; Hiking = snacks and to go bag.
Originally reviewed on Sea to Summit
January 12, 2024
UL Dry Bag 3L
[This review was collected as part of a promotion.] This 3L dry bag is perfect for organization while backpacking. I used to think I didn't need an organization system, but it makes all the difference for minimal weight. I store my toiletries, electronics (cables and battery pack), and other personal care items. Would highly recommend to anyone considering!
Originally reviewed on Sea to Summit
December 23, 2023
Durable and UL… magic
[This review was collected as part of a promotion.] Does exactly what it’s supposed to do. Keeps things dry while being incredibly light. There are other “lighter” options out there that I have tried. Nothing comes close to the durability to weight ratio that they have achieved with these dry bags.
Originally reviewed on Sea to Summit
September 30, 2023
Easy to Seal
[This review was collected as part of a promotion.] The bag is very lightweight, visible, and easy to seal. I organize my backpack with these bags of different sizes and colors. A quality product.
Originally reviewed on Sea to Summit
August 31, 2023
Perfect Dry Bags!
[This review was collected as part of a promotion.] My husband and I are currently in the midst of a multi week backpack trip on the coast of England, where we’ve had some significant rain and heavily dewey nights. We’re using three ultra-sil dry bags inside of our backpacks to keep everything nice and dry. These bags are indispensable. They’re very light weight. The fabric is nice and smooth, allowing you to slip them in and out if your backpack very easily. We’ve used them for about a month and they still look just like new!
Originally reviewed on Sea to Summit
July 30, 2023
The Perfect Bag
Lightweight, functional, durable! I use these in various sizes to keep my frame bags organized while bikepacking. Really great product!
Originally reviewed on Sea to Summit
July 19, 2023
Biggie Bag of Magical Treasure
[This review was collected as part of a promotion.] Surprisingly durable! Used it for the entire Superior Hiking Trail thru hike as my hang bag for my food. Then used it backpacking in Colorado as my dry sack for sleeping bag and pad. Wicked light, wicked simple, and overall a good product. Great stuff.
Originally reviewed on Sea to Summit
July 15, 2023
Ultra sil 4 litre dry bag
Unfortunately, perhaps user error, the top of the bag ripped off when I tried to stuff clothes in it. Not meant for putting much strain on it.
Originally reviewed on Sea to Summit
July 10, 2023
Perfect for travel
[This review was collected as part of a promotion.] I love that these bags are multifunctional. These dry bags are great for traveling with liquids, wet towels and more. I love using them. They are easy to clean. I hang dry to keep the water proof capabilities.
Originally reviewed on Sea to Summit
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