No pro rider starts a race without his aero socks in the modern-day peloton. The aero bullet is no different, with Remco choosing Fast Feet Socks on every race day.

Product Features:

• Castelli's Fast Feet project — for riding in warm conditions
• The foot portion is based on the Castelli Rosso Corsa Sock for in-shoe comfort
• Polyurethane grip strip at top to keep sock in place
• Leg portion constructed with engineered grooved Lycra® to help detach airflow
• Color: White/Belgian Blue
• Size: L/XL