Sea to Summit Big River Dry Bag
Best heavy duty storage for rugged outdoor adventures and water sports.
These bags are built for the kind of abuse that shreds lesser gear, prioritizing absolute protection over lightweight minimalism. The oval base and heavy-duty lash points make them incredibly stable and easy to secure, though you’ll sacrifice a bit of packability for that rugged, bombproof construction.
$49.95
at
Union Garage
More Big River options
Who it's for
- Paddlers and rafters navigating rocky or abrasive river environments
- Adventure travelers needing to secure gear externally on moving vehicles
- Kayakers and bikepackers optimizing limited storage in narrow compartments
Who should skip it
- Ounce-counting backpackers prioritizing weight savings over extreme fabric toughness
- Scuba divers or enthusiasts requiring a fully airtight, submersible seal
- Cold-weather explorers who prefer more pliable materials for easier handling
Performance breakdown
Waterproof Integrity
The roll-top closure creates a reliable seal against heavy water exposure.
Abrasion Resistance
Rugged 420D nylon fabric withstands rough handling and abrasive outdoor surfaces.
Mounting Versatility
Integrated lash points make securing this bag to racks incredibly straightforward.
Internal Visibility
The white interior coating makes finding small items quick and effortless.
Stability
The oval base design effectively prevents the bag from rolling away.
Weight-to-Durability Ratio
Balances heavy-duty protection without adding unnecessary bulk to your pack.
Key Specs
Material
420D Nylon with TPU film
Capacity
13 Liters
Weight
6.7 ounces
Fabric Thickness
420 Denier
Closure Type
Roll Top
Dimensions
8.7 x 7.9 x 17.3 inches
Submersible
No
Floatable
No
Transparent Window
No
D-Rings
No
Know before you buy
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Ask Metto anything about the Sea to Summit Big River Dry Bag before you decide.