Castelli Fast Feet 3 Sock

What Our Gearhead® Experts Are Saying:

"I love the Fast Feet 3 Sock for warm rides and races. The Lycra construction feels fast, and the grip strip keeps it secure all day."

The Fast Feet 3 Sock takes our race-day kit to the next level. Designed for warm-weather riding, its Lycra® leg portion features engineered grooves to detach airflow for an aerodynamic advantage. The foot portion is based on Castelli’s Rosso Corsa Sock, ensuring unmatched comfort and breathability. A polyurethane grip strip at the top keeps the sock securely in place, so we can focus on the finish line without distractions.

, Aerodynamic cycling sock designed for warm-weather racing, Engineered Lycra® leg grooves help detach airflow for speed, Rosso Corsa foot construction ensures breathable comfort, Polyurethane grip strip keeps socks securely in place, Lightweight, race-specific cushioning minimizes bulk