Optimal height and width reduces drag caused by stem and headset spacers with no increase in frontal area; 72 degree nose fits tight against stem, tapering into a sleek aero profile; Super smooth, low skin friction exterior reduces drag; Large, easy-pull zipper for ease of access even when race day adrenaline is at its peak; Silver colored interior makes it easy to find contents; Inside pocket for tablets, cash or small items; Extra long front straps for installing on bikes with cables entering the top tube behind the headset; Non-slip bottom and front grip to top tube and back of stem for a steady ride