CamelBak Unbottle Hydration Pack -The highly versatile CamelBak Unbottle stormed the backcountry, winning Backpacker Magazine’s Editor’s Choice Award for its versatility and durability. At the heart of the Unbottle is the rugged low-profile Antidote wide-mouth reservoir. The Big Bite valve is ergonomically positioned for easy drinking, and the handy HydroLock securely shuts off water flow. Slick Cliips attachment points and a ladder-lock top handle let you easily attach the Unbottle to a pack or anyplace else you might need water. The insulated reservoir sleeve keeps water cool. If you’re tired of lugging water bottles or making other compromises with your favorite backpack, the CamelBak Unbottle is the versatile solution.