The Endura Durapak Backpack is an ultra packable, waterproof backpack. Super light and constructed with Cordura® fabric. When designing the DuraJak, a tough, featherweight jacket that provides foul weather protection, Endura thought, doesn't your kit deserve the same level of protection as you!  Meet the DuraPak, a packable, lightweight waterproof backpack that uses the same cordura reinforced fabric as the DuraJak that will ensure your kit has as good a time as you.  Endura Durapak Backpack Features Super light, packable and waterproof Cordura® fabric Fully seam sealed construction Internal pocket double as stuff sack Adjustable chest strap Roll top closure External removable elastic storage Endura Durapak Backpack Materials Nylon 100% Waterproofness: 10000