This hydration system is perfect for hikes and all outdoor activities in remote areas where water is not immediately available or simply where there isn't safe drinking water. VENTURER HYDRATION SYSTEMS, a Rothco exclusive, name brand features at a discount price, spring-hinged bite valve, detachable hose, easy-fill bladder, 600 denier polyester construction, nylon lining, padded mesh back, vinyl-lined padded adjustable shoulder straps, waist straps, top carry handle, YKK zippers & buckles 17" x 8"