Perfect for long day hikes, outdoor events and endurance runs, the Camelbak Stamina I waistpack keeps you hydrated and organized. Velvetex nylon fabric harness increases ventilation and enhances comfort. Single zippered cargo pocket stores small extras such as a cell phone, media player or camera. Hipbelt stash pocket provides access to energy gels and performance food while on the move. Includes 22 oz. dishwasher-safe Camelbak Performance water bottle. Big Bite valve and straw create straightforward, drip-free drinking without tipping squeezable sides control water flow. BPA-free polypropylene construction stands up to harsh daily use and does not retain tastes or odors. Upper part of the cap twists to lock off water flow and eliminate spills while transporting.