Ledge Sports Jem Hydration Pack Nylon Bladder Volume: 68 oz (2 liter), Storage Volume: 570 cubic inches Dobby Diamond Ripstop Construction, Drip Free Dual Action Bite Valve Full Rain Shield With Velcro Fastener, Seven Organized Pockets, Bullet Bite Valve Adjustable Waist and Sternum Strap, Two Bottle Compartments, Earphone Access Reflective Taping, Bungee Cargo Holder, Padded Ventilated Back Panel, Bottom Hole Support