This hydration pack from CamelBak provides quick and easy hydration for any situation. This pack is designed to be lightweight without sacrificing volume. The long-neck design distributes the weight more evenly, so the pack never weighs you down. External fill allows for easy refilling. Also includes quick release shoulder straps that unclip for easy removal as well as hook and loop strap management. NSN: 8465-01-396-9917