Redesigned to go the distance with you, the CamelBak M.U.L.E. 12 Mountain Biking Hydration Backpack is MTB's best friend. We've updated this classic go-to pack with slight body modifications for a smooth ride and fit. The M.U.L.E. 12 Hydration Backpack is the perfect size, offering premium hydration and all the features to make every bike adventure awesome. Smart storage options include an overflow pocket for an extra layer or wet rain jacket, and a removable stability belt for added flexibility and comfort. The Magnetic Tube Trap works with all our reservoir tubes, while the Air Support Back Panel, lightweight materials, and max ventilation keep you feeling and looking cool on the trail. The reservoir with Quicklink System ensures you get all the hydration you need on the move, with no fuss.