The PRO Lightweight Bottle Cage is an aerodynamic and easy to use bottle cage. PRO have constructed the Bottle Cage from premium polycarbonate to decrease weight (when compared with the PRO Bottle Cage) without affecting durability - it now tips the scales at only 36g! After all, what's better than saving Watts? Saving a couple of extra grams of course! Thanks to the unique design of the PRO Bottle Cage, it snugly clamps onto your frame, while the thin arms reduce aerodynamic drag, saving you precious watts. With the PRO Lightweight Bottle Cage you have an extreme, aerodynamic bottle cage that helps you to stay hydrated without increasing drag or weight saving you some precious energy when you're out racing or on a weekend Gran Fondo!