Dont Let Your Hydration System Slow You Down The HSF Aerodrink 880 is perfect for time trialists or triathletes who need to stay hydrated during intense efforts. This front-end hydration system easily mounts between aerobars, so you dont have to deviate from the aero position to stay hydrated. The shape of the bottle has also been designed to hide the included mounting bracket from the wind. Profile Design worked hard to minimize access mass in the front area of the bicycle wherever possible to avoid adding aero drag to your setup.