Castelli Fast Feet Aero Bullet socks – White

The socks Castelli Fast Feet Aero Bullet are designed for road running or when you can’t wear a Fast Feet TT shoe cover, this sock will save you watts.

• Fast Feet Castelli design, for running on the hottest days.
• The foot part is inspired by the Castelli Red Race Sock for maximum comfort inside the shoe.
• Anti-slip polyurethane strip at the top to keep the sock in place.
• The leg part is made of Lycra with engineered grooves to promote air circulation.
• Color: White.