Our bestselling M.U.L.E. hydration pack has been part of your dependable support crew for years, but it was time for a tune-up. Enter the M.U.L.E.® Pro 14.The same great pack you know and trust with the all new Air Support™ Back Panel, plus a few essential additions to take your ride to the next level. Designed with body mapping technology to address areas that retain the most heat, maximum air flows across the back panel to provide comfortable cooling.A lightweight and breathable 3D vent mesh harness helps to keep your load light. A large capacity 3L Crux® Reservoir, hip belt with cargo carry, and bike tool organizer makes it easy to plan for a full day's ride. Upgrade to max performance - this pack is also Impact Protector™ ready and e-bike battery compatible so you can go all out.