Speed Lite Backpack - 21LMove fast & light through the mountains as well as comfortably thanks to the deuter Lite back system, ergonomic, perforated shoulder straps, a detachable waist belt, and 2 way adjustable sternum strap. All your gear, hydration, and food can be divided between the main compartment, front pocket and two side pockets. And it has docking loops for a helmet holder on the front, if needed.