You know from experience that spending enough time outdoors means youre likely to encounter a rain shower or two, or possibly that your backpack will fall in a puddle. Keeping your gear dry is essential to having a good time. Protect your gear with our Boundary Waters Backpack. The durable 500-denier shell with 100% waterproof PVC construction and welded seams ensures your gear stays dry, even if the outside of the bag is soaking wet. Roll-down top and lashing straps with quick-release buckles ensure waterproof integrity. Cored-out foam back panels and shoulder straps minimize weight and increase breathability so you stay comfortable. Adjustable hip belt and load-lifter straps. Imported. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Dry Bags.