The Chrono bottle and carbon fiber cage combo is specifically aero shaped for races against the clock, including triathlon. The odd shape pays special attention to the mechanics of releasing and inserting the bottle in the cage. The cage and bottle mate together in a positive snap. The countersunk surfaces on the bottle form a seamless interface with the cage. The bottle flows in a natural route in and out of the cage enabling the rider to spend less time getting a drink. The cap on the bottle is an industry standard with a mouth wide enough to use ice cubes or sports drink powder. The Arundel logo serves to improve the grip. The Arundel Chrono strikes a keen balance between a slippery aero shape and the critical issue of useability.