Includes 70oz (2L) 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 Silicone Impregnated 100D Trilobal Ripstop and 210 D Nylon with a 420D HD Nylon bottom panel * Dedicated Zippered Reservoir pocket with an Air Chairman Back Panel * Soft, Moisture Wicking Back Panel and Comfort Padded Shoulder Straps * Large main pocket with Pump Sleeve and two internal organizer pockets