The CamelBak FlashFlo is a stable, lightweight and comfortable hydration waistpack. This is a perfect fanny pack for those who run, walk, bike, or just kick it around town. It offers enough water for one to two hours out 45oz. / 1.4 liters, plus cargo space for a snack or music player. Features of the FlashFlo include side-cinch compression straps to keep load stable and secure, external zip pocket for keys and essentials, reflectivity for increased low-light visibility and a breathable mesh waist belt.