The Castelli Fast Feet 4 Socks are built to save watts when every second counts. Developed through Castelli’s Fast Feet aerodynamic project, they deliver measurable drag reduction for road racing situations where overshoes aren’t an option.
Key Features:
- Developed as part of Castelli’s Fast Feet project to maximize aerodynamic performance.
- Engineered grooved Lycra® leg construction helps detach airflow and reduce drag at speed.
- Foot section is based on the Castelli Rosso Corsa Sock for proven in-shoe comfort.
- Polyurethane grip strip at the top keeps the sock securely in place during high-intensity efforts.
- Designed for racing scenarios where TT shoe covers cannot be used.
Who is it for?
Ideal for road racers and performance-focused cyclists looking to gain aerodynamic advantages in competitive events, fast group rides, and race-day situations where equipment choices are restricted.
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