For riders racing under UCI rules, these over shoes are designed to to make your legs as aero as the rulebook allows.

Using the same materials as our socks, but extended down to the base of the shoe to reduce low pressure drag. The windproof material used to cover the front of the shoe is designed to smooth airflow around closure systems including dials, ratchets straps and laces in order to create the most streamlined shape possible,

Size Conversion UK/EU

3.5-5 = 36-38

5.5-7 = 39-41

7.5-10 = 42-44

10.5-12 = 45-47

Note: For shoes with a large heel cup/bulky construction around the ankle, it can be beneficial to select a size higher. Excessive stretching of the materials can have adverse effects on performance.

If you have any questions regarding sizing, please contact us at info@rule28.com and we will do our best to help you out.