FREE ECONOMY SHIPPING FREE ECONOMY SHIPPING. The perfect GIFT for runners! The Hydrosleeve is the only running hydration device that allows a runner to hydrate during a run without the use of the hands. By securely tightening the sleeve on the upper part of the arm, the weight is close to your core, keeping your body in balance. Taking sips while running can be hassle free without having to slow your stride or stop, and will improve your performance. SIZING: (Measure arm circumference at upper part of bicep) SMALL = 8-10.5 in / MEDIUM = 11-15.5 in / LARGE = 14.5-20 in
