The Fast Feet 2 cycling socks from Castelli are designed for road cycling or when you want to save watts.

These socks are part of Castelli's Fast Feet project, which aims to design socks for warm weather conditions.

Additionally, the purpose of these socks is to be aerodynamic. This is achieved through the use of developed Lycra material for the upper part of the socks, which helps direct air around the legs.

The socks are equipped with a polyurethane strip to keep them in place.

Specifications and features:

• Part of the Castelli Fast Feet project
• Polyurethane strip at the top of the socks
• Extra aerodynamics for the legs