If you are not fond of shoulder straps on your pack or want the freedom of a full range of motion then the Bando Shoulder Hydration Pack is perfect for you. The Bando's quick release tab on the crossover strap allows you to adjust for comfort on the go. Hydration Bladder: 70 oz. hydration engine, quick-release valves for drinking tube and pressurization tube for easy refill and bladder removal, slide top for easy refill, cleaning and drying.