Our ARMY OCP (Operation Enduring Freedom Camouflage Pattern) MultiCam M.O.L.L.E 3 Liter (101 oz.!) Hydration System is made from U.S. Licensed 1000 Denier Cordura Nylon. Its has a Polyuerathane Bladder w/ Neoprene covered hose and soft bit valve with on/off switch. It also has a crew cap for quick fill/empty. Top Carry handle and M.O.L.L.E compatible.