Castelli Fast Feet 3 Sock Electric Lime, S/M

What Our Gearhead(R) 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(R) 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.