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The Big River Dry Bag is Sea to Summit’s rugged answer for serious water and adventure use, built from strong 420D nylon bonded to a bright-white TPU lining for a 10,000 mm waterproof rating and exceptional tear and puncture resistance. Multiple lash points and sturdy D-rings let you strap it to kayaks, bikes and 4WDs. A hypalon roll-top and swappable Field Repair Buckles keep water out and repairs easy. A triple-coated base boosts abrasion resistance, and a new oval base saves space. Non-PFAS, lifetime guaranteed.
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