Shoe size correlates very well to lower leg length. It is a number that most people know already and so saves time measuring your leg.
If you have very slim claves and are close to the border in sizes, then we would recommend sizing down.
No, these are for aerodynamic benefit only and do not provide any compression. The tightness needed to achieve compression would seriously impact aero performance.
ITU Legal to wear under a wetsuit, our calf guards are longer than our aero socks to bring you the maximal aero saving possible.
Choose aero guards
Save approximately 35 seconds on a 4 hour Iron Man bike leg or 46 seconds on a 6 hour bike leg.
That's more than a disc wheel would save you!