CASTELLI FAST FEET 3 SOCKS WHITE
Description
CASTELLI FAST FEET 3 CYCLING SOCKS – COMFORT & AERODYNAMIC
The Fast Feet 3 Socks are part of Castelli's Fast Feet aerodynamic project . Developed to offer maximum efficiency and comfort in hot conditions. Inspired by the socks used in time trials, they have been optimized to reduce air resistance. and deliver real performance gains.
The lower part is based on the Rosso Corsa Sock model, ensuring comfort inside the shoe. while the upper part is constructed from Lycra® with aerodynamic grooves. which help to separate the airflow and improve performance. The polyurethane strip at the top keeps the sock firmly in place during exertion.
Tested in real-world conditions and in the laboratory with simulated leg movement, These socks demonstrated a power saving of up to 2 watts at 50 km/h . The new version features a redesigned upper cut that offers even more comfort. and aerodynamic benefits. A technical choice for those seeking speed without compromising comfort.
Features
- Castelli Fast Feet Project — designed for cycling in hot conditions.
- Bottom part based on the Sock Rosso Corsa for comfort inside the shoe.
- Polyurethane strip at the top to keep the sock in place.
- Lycra® leg with aerodynamic grooves for better airflow management.
- Proven aerodynamic benefits — saves up to 2 watts at 50 km/h.
- Weight: 48 g
- Ideal temperature: 10–30°C / 50–86°F
- FIT: Race
