Castelli Fast Feet 2 socks

For road cycling or when you can't wear Fast Feet shoe covers, this sock saves you watts

Numerous models of so-called 'aerodynamic socks' are available on the market, but only the Castelli Fast Feet have really been developed and tested to really deserve the name. The few socks that have been tested have probably been tested in static conditions, without movement because it is easier. But a foot is always in motion, so Castelli has recreated a model that can replicate the movement of the lower leg. Tests were also carried out on the cyclists themselves to verify the results. With these socks you can save 2 watts at 50 km/hour.

Features

• Castelli's Fast Feet project, for pedalling even in hot conditions.
• The foot part is inspired by the Castelli Rosso Corsa sock for maximum comfort inside the shoe
• Polyurethane strip in the back to keep the sock in perfect position
• The leg part is made of Lycra® with grooves designed to favour airflow
• Temperature range: 10°C - 30°C / 50°F - 86°F.