The Dynafit X7 Pro Hydration Pack is the perfect companion for those with a need for speed. Whether you crave that adrenaline high when you're trail running or mountain biking, this pack keeps you hydrated with the 1221 cu in capacity and lets you pack your extra windbreaker and granola bars easily. The 68 denier polyester and PU coating protect what you've stashed inside, and the adjustable straps and lightweight design let you slip it over your shoulders comfortably. And when you need to reach into the pack quickly, simply use the side panel access so you don't have to unclip the waist belt and take it off.To keep up with your active lifestyle, the X7 has two side pockets that hold some extra bottles and a front mesh pocket that holds small, easily accessible items. Since it's only 12 ounces, this pack has unlimited possibilities for your gear without weighing you down. You also have some gear loops, a place to keep your helmet and trekking poles, and, of course, it is hydration compatible.