What makes the M.U.L.E. 12 Hydration Backpack redesign so exciting? For starters, it's the perfect size, comes with premium hydration and has all the features to make every bike adventure awesome. In addition, Camelbak has supplied smart storage options, with an overflow pocket for an extra layer or wet rain jacket, and also a removable stability belt for added flexibility and comfort. Another key addition is the Magnetic Tube Trap that works with all of Camelbak's reservoir tubes. Also included is the Air Support Back Panel, lightweight materials, and max ventilation to keep you feeling and looking cool on the trail. Finally, a reservoir with Quicklink System ensures you get all the hydration you need on the move, with no fuss.