The EVOC Hip Pack Race Hydration Bag is a must-have companion for rides requiring little equipment. Features include a 1.5L bladder that operates as a small hydration pack to keep you pumped as you ride. The VENTI FLAP system allows you to adjust the distance of the fanny pack to your back as well as the ventilation along the back panel. Our AIRO FLEX material is extremely study, permeable and flexible. It provides optimum load transfer to the hips for maximum carrying comfort. EVOC has traveled the world to create the best in cycling gear.