The legendary Boundary Pack is perfect for everything from canoeing and canyoneering to protecting your gear on trains, buses, and burros. It features a watertight Dry Seal roll-top closure, along with a heavy-duty, 30-ounce scrim-reinforced vinyl bottom and 19-ounce scrim-reinforced vinyl body. A lightweight suspension system includes waterproof and ventilated shoulder straps, as well as a waist belt on every size. These bag are great for raft trips, moose hunts, and pack horse gear transportation. The durable design and rugged materials can stand up to the elements of Alaska.