Ultimate Direction keeps your hydration in check with the Fastdraw 500. Flexform II 500 bottle. iPhone compatible pocket. Stretch-mesh pocket fits smaller items and race gels. Cool Wick Air Mesh strap is lightweight and breathable for optimal ventilation and moisture management. Soft and thin chafe-free edge binding for all day comfort. Key fob and interior security divider. Adjustable hand tension strap for a perfect fit. Specifications: Weight (Without Bottle): 34 g / 1.2 oz Total Volume: .15 L / 9 in3 100D baby ripstop. Imported.