Our best-selling portage pack is now even better, with an improved suspension system that includes breathable/waterproof shoulder straps, as well as a waist belt on every size. This Boundary™ Pack is great for everything from canoeing and canyoneering to protecting your gear on trains, buses, boats, and float planes. It features our watertight Dry Seal™ roll-top closure, along with a heavy-duty, 30-ounce scrim-reinforced vinyl bottom and 19-ounce scrim-reinforced vinyl body. Available in three sizes: The 115L and 70L sizes close with side-cinch buckles, while the daypack-size 35L includes a top buckle closure.