M.U.L.E. 12 is the perfect size for premium hydration on biking adventures. Air Support Back Panel - Body Mapping technology provides maximum ventilation. 3L Crux reservoir with Quicklink system. Magnetic tube trap keeps tube secured and accessible. Removable waist strap adds stability. 3D Vent Mesh harness is breathable with added cargo. Helmet carry stows and secures. Stretch overflow pocket. Integrated carry pockets. Repurpose Gold Sustainability Badge: Made with recycled materials. Torso fit range: 17" - 21". Gear capacity: 9-liters.