M.U.L.E. 100oz/3L Biking Hydration Pack plus Crux 100oz/3L Replacement Reservoir

There's a reason this is one of our bestselling, longest-running packs: it's got everything you need, and nothing you don't. The Camelbak M.U.L.E. has a narrow-gauge design that keeps it light and maneuverable-so even when it's fully loaded for a day of mountain biking, it won't get in your way. The all-new Camelbak Crux 3L Reservoir means more water per sip, with a foolproof design that made it easy to fill up and hit the trail.