The Camelbak signature hydration pack for mountain bikers, the M.U.L.E. offers superior secure overflow storage and incredible stability. With a 100 oz. reservoir, riders can comfortably hydrate for 3 hours on the trail. Plus, the M.U.L.E. features an excellent combination of organized and overflow cargo options. 100 oz. antidote reservoir Insulated reservoir pocket keeps liquid cool for hours Slider Sternum Strap and removable waist belt for stability Easy to access MP3 pocket with weather resistant zipper Quick access overflow storage with dual compression straps Air director back panel Dynamic suspension harness Overflow Cargo Organizer pocket for bike essentials Material: 70D 210 D Diamond Ripstop Nylon 70 D 140D Block Dobby Nylon Size: 18.5 in. x 9in. x 9 in. Weight: 1 lb. 5 oz. Pack Only Capacity: 100 oz. 3 L Cargo: 549 cu in.