Hydrapak JOLLA Hydration Backpack, Ivory Includes 100oz (3L) Reversible Reservoir II Water Bladder Hydration Drink System Reservoir Includes 36" Big Bore Drink Tube, Plug-N-Play Quick Disconnect, 45deg Surge Bite Valve, and magnetic Quantum Clip Constructed of 210D Baby Ripstop Nylon and 420D Double Nylon Ripstop FeaturesQuadCompressionStrapDownSystem A full sized backpack that's ready for more than just riding. Dedicated Zippered Reservoir pocket on back panel