A lightweight hydration backpack supplying 4L of storage capacity when you need to bring extra gear and energy on top of the hydration. Equipped with highly ventilated shoulder and chest straps in soft mesh. The OUTLANDER 4L XC is geared-up with our award winning patented No Dancing Monkey™ 4-point harness that makes the pack 100% bounce free in action. The unique stretchy harness allows a tight fit but gives that extra freedom to breathe and move.