Packing a little less volume than Camelbak's flagship mountain bike hydration pack but every bit as capable, the M.U.L.E. NV Hydration Pack is if you need a lot of water and plenty of storage, but also need to keep an eye on the amount of weight you're carrying. The M.U.L.E. is packing a full three liters of water and over 700 cubic inches of storage space. Camelbak's new Antidote Reservoir graces the hydration sleeve of this beauty, and it's loaded with features that make it easier to fill, easier to clean, and easier to live with.The M.U.L.E. is more than just a big bag of water, though. From the advanced NV suspension system designed to keep the load away from your back to the fixed waist belt with easy-access cargo pockets, the M.U.L.E is a night-and-day improvement over your old hydration pack even before you come to the revolutionary Antidote reservoir.NV back panel with articulated pods for a fully ventilated back panel that keeps the load suspended away from your backNew Antidote reservoir includes a lightweight, quick-seal cap, folding arms on the port to speed drying, and baffles in the body that allow the reservoir to maintain a lower profile when fullNew Quick Link system in reservoir allows you to quickly snap off the tube for cleaning and easily attach accessories like filters, flow meters, and insulated tubesAmple main compartment and multiple exterior pockets hold your rain gear, multi-tool, pump, spare tube, lunch, MP3, phone, wallet, and keys, while XC helmet carry stows your dome protectorFixed .75-inch belt with cargo pockets keeps the pack from bouncing around as you bomb downhillHydroGuard anti-microbial technology inhibits bacterial growth on reservoir and tube surfacesErgo Hydrolock shut-off valve allows you to control water flow and prevents leaksXC helmet carry stows your dome protector