New M.O.L.L.E. compatible Hydration system made from 1000d heavyweight nylon Flecktarn fabric.  Same style currently used by German Army Soldiers.  2.5 liter Polyurethane bladder with stretch fabric covered hose and soft bite valve with on/off switch.  Bladder has large screw cap for easy filling and emptying.  Has backpack straps with quick release buckles, back flap, front and top carry handles and M.O.L.L.E style straps for attaching to your vest. 46 x 18 x 2 cm. New.