Stay Hydrated On The Go! Made from durable and water resistant nylon, it features a 72 oz food grade bladder, internal storage, external pockets, an easy bite valve and high flow tube for hydrating on the go. The adjustable straps make it easy to fit properly. You can find this hydration pack exclusively at Amazon! KEY FEATURES: Water Resistant Nylon Backpack 72 oz Food Grade Bladder Internal Storage External Pockets Easy Bite Valve High Flow Tube