Castelli Fast Feet TT Shoecover

Castelli’s Fast Feet TT Shoecover is designed to make feet slip quickly through the wind creating that extra advantage in time trialing without breaking the UCI rule limits. The shoecover was designed using on-bike wind tunnel testing to determine which fabrics were the fastest and lightest. The foot portion is made with smooth silicone-coated stretch fabric while the grooved leg portion helps accelerate air as it flows around the leg. The cuff of the shoecover reaches to the calf therefore providing even more of a smooth surface for airflow. Combine with the Fast Feet socks to maximize the comfort and aerodynamic advantage you gain by making your feet more aero and keeping them dry.