Castelli Fast Feet TT Shoecover

These shoe covers were designed with UCI regulations in mind for maximum aerodynamics in time trials. The development process included CFD analyses, extensive material studies, and practical tests in a wind tunnel. The smooth, silicone-coated foot area optimizes the wind attack surface, while the ribbed leg area ensures ideal airflow separation. These shoe covers are extremely high and extend up to the calf muscles. There is virtually no reason not to use them in road races as well. However, they provide their maximum advantage in high-speed situations during time trials.

Time trial shoe covers from the Castelli Fast Feet product family. Developed in collaboration with Team Sky as the fastest shoe covers for time trials. Silicone-coated stretch material in the foot area for smooth airflow. Ribbed Lycra® cuffs for optimal airflow separation. Thin polyurethane tape ensures a secure fit.