Features Enter your model number to make sure this fits. Material: 200D nylon ripstop Volume: 1100 cu in Support/Suspension: air mesh suspended back panel Shoulder Straps: air mesh Waist Belt: yes, padded Description Product Description The Amp 18L Hydration Pack is Dakine's premier daypack for bikers riding mountains, deserts, or streets. Its included 3L Shape-Loc hydration reservoir retains its shape until the last drop, and it features Dakine's new high-flow Blaster bite valve and a magnetic hose clip. Dakine designed the Amp with an air mesh suspended back panel, an ergonomic waist belt, and breathable shoulder straps for the utmost comfort in warmer weather. This pack also features a helmet carry system, side compression straps, and multiple pockets for sunglasses, goggles, pumps, and tire repair kits.