CamelBak M.U.L.E. NV 100oz Hydration Pack. A favorite for any terrain and all kinds of weather, the CamelBak M.U.L.E. NV hydration pack has been re designed for 2015 to better satisfy all of your hydration and gear storage needs. This narrow gauge pack has everything you need and nothing you don't and its compact design means that it won't get in your way, even when it's fully loaded. The NV back panel is designed to hold the load away from your back for maximum ventilation, with a special lumbar pod that helps the weight settle comfortably on your lower back. There are separate cargo compartments for storing 3 liters of water, plus enough gear for a full day on the trail, and the magnetic tube trap lets you stow your drinking tube in one click so you can hydrate without taking your eyes off the trail. There are also a pair of hooks for carrying your Bicycle Helmet, clever compartments for stashing tools, keys and electronics, and a built in rain cover that pops out to shelter your gear from showers on the trail.