CamelBak 2016 Octane XCT Hydration Pack Nylon Imported Perfect for lightweight trail running or cycling Antidote reservoir features Quick Link system, easy open/close cap, lightweight fill port, Dryer arms, center baffling and low-profile design Key pack features: ultra-light materials, front and back reflectivity, safety whistle Designed to carry extra layer, trail maps, energy bars Camelbak Got your Bak guarantee: if we build it, we'll Bak it with our lifetime guarantee Four exterior pockets. One interior slip pocket