The Profile Design Aero Drink System is one of the most recognizable and important triathlon accessories. One of the best ways to shave time off your bike split is to stay in the aero position whenever possible. The aero drink allows you to stay hydrated and aero. The thin and sleek bottle will hold 30oz, more than your standard large water bottle. The refillable lid with splash cap is a simple and effective design. Be sure to purchase the corresponding bracket to secure the bottle.