What Our Gearhead(R) 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.