Big River Dry Bag
Temporarily Out Of Stock
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View Similar ProductsExpedition-grade protection in the Big River Dry Bag
What Our Gearhead® Experts Are Saying:
"I've used this bag on everything from multi-day raft trips to motorcycle tours. The 10K waterproof rating is legit—gear stays bone dry even when the bag gets completely submerged."
Gear protection becomes critical when rescue is measured in days rather than hours, so we trust the Sea to Summit Big River Dry Bag to safeguard essentials during serious expeditions. TPU laminate and seam-sealed construction create a fortress that laughs off submersion while abrasion-resistant nylon handles the inevitable abuse of extended wilderness travel.
Details
- Bombproof dry bag designed for extended expeditions and touring
- TPU-laminated construction with full seam sealing ensures waterproofing
- 420-denier nylon shell resists abrasion from rocks and rough handling
- Roll-top closure compresses contents while sealing out moisture
- Multiple lash points provide secure attachment options for any adventure
- 10K waterproof rating withstands complete submersion scenarios
- Perfect for paddling, motorcycle touring, and wilderness camping
- Essential protection for electronics, clothing, and critical gear
- Item #STSZ087
- Material
- [membrane/laminate] TPU, [face fabric] 420D nylon
- Volume
- [x-small] 5L, [small] 8L, [medium] 13L, [large] 20L, [xx-large] 65L
- Pockets
- none
- Compression
- yes
- Waterproof
- 10,000mm
- Closure
- roll-top
- Dimensions
- [x-small] 6.6 x 5.6 x 12.7 in, [small] 7.6 x 6.5 x 14.7 in, [medium] 8.7 x 7.9 x 17.3 in, [large] 10.4 x 9.6 x 18.9 in, [xx-large] 15.0 x 13.9 x 28.3 in
- Claimed Weight
- [x-small] 4.8oz, [small] 5.6oz, [medium] 6.7oz, [large] 8.8oz, [xx-large] 15.3oz
- Activity
- flatwater paddling, river paddling
- Manufacturer Warranty
- lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
5 based on 212 ratings
Review Summary
Customer Images
Here's what customers have to say
The dry bags are praised for their durability, waterproofing, and versatility. Customers report the bags are sturdy, reliable, and keep gear dry even in extreme conditions. Many appreciate the multiple lashing points for easy attachment to various gear. The bags are described as lightweight yet durable. While some have experienced minor longevity issues, the reviews are overwhelmingly positive, and the bags are recommended for a wide range of outdoor activities.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageAugust 26, 2025
Great Bag
[This review was collected as part of a promotion.] Durable, perfect size and the strap worked well, easy to clean afterwards
Originally reviewed on Sea to Summit
August 16, 2025
did the job!
[This review was collected as part of a promotion.] We needed a cover for an outdoor gangway hoist control. The dry bag is now keeping it dry and reducing exposure to salt in the air.
Originally reviewed on Sea to Summit
August 5, 2025
Sturdy, reliable bags
[This review was collected as part of a promotion.] Love them. I’ve used some incarnation of sea to summit dry bag for years, and they’ve always worked well. When rolled down securely, they’ve kept things dry even after being briefly submerged. Good for water, and anything else. I keep one packed with emergency supplies for the dog and me, and it lives in the roof box of the car. Keeps things dirt and moisture free. Have and would purchase again.
Originally reviewed on Sea to Summit
July 2, 2025
Great bag!
[This review was collected as part of a promotion.] Bought for my wife’s motorcycle. Keeps her gear dry and organized:-)
Originally reviewed on Sea to Summit
June 27, 2025
Big River Dry bags
[This review was collected as part of a promotion.] We love our Big River Dry bags. We have several bags and in different sizes. We have been using the 65L for years for storing gear on our car racks keeping them dry and clean. The river bags are very strong and durable and the lash points are perfect for tying them down. We recently bought the 20L bag along with a sling strap to carry our 10L water cell to some of our hike to camp sites. This did a great job to stabilize it as we cradle it in front of our body to help distribute the weight. Another great resource for us. Thank you Sea to Summit in making excellent products.
Originally reviewed on Sea to Summit
June 27, 2025
Travel with confidence
[This review was collected as part of a promotion.] I purchased the Big River dry bag and am very pleased with quality material. I especially like the reinforced side loops for securing the bag. Previously I purchased your good quality water proof dry bags that are slippery.
Originally reviewed on Sea to Summit
June 11, 2025
Excellent waterproof sac
[This review was collected as part of a promotion.] Excellent quality waterprooof bag …the ai assisted chatbox was amazing as it took my complicated ask and correctly determined that my pro gadget bag would fit in this product . . answer was absolutely correct …product shipped fast and efficiently
Originally reviewed on Sea to Summit
May 1, 2025
Love these bags!
[This review was collected as part of a promotion.] I bought a few different sizes to use for my bikepacking set up, I appreciate the multiple lashing points, it makes it much easier to strap onto my bike. Have used them for a few rides and so far they’ve held up wonderfully. I also used them during a split boarding yurt tour to strap some stuff on outside of my touring pack and they kept contents dry. In that case, also appreciated the multiple lashing points.
Originally reviewed on Sea to Summit
April 18, 2025
Bomber!
[This review was collected as part of a promotion.] I absolutely love these bags. They're bomber, not light weight (comparatively), but bomber. Overall great layout, strong straps, and ready to get thrashed (mine have seen more than a few rock scrapings). Everything stays dry!
Originally reviewed on Sea to Summit
April 11, 2025
Dry and Secure
[This review was collected as part of a promotion.] The bag met all of our expectations. Its primary purpose is to protect a digital camera system when we are on adventures in wet conditions or areas. It is doing that function wonderfully. Could not be happier with this product. Thanks!
Originally reviewed on Sea to Summit
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