Castelli 6 Fast Feet shoe covers, the aerodynamic accessory par excellence, to cover shoes and calves, reducing friction.

• For athletes always looking for maximum performance.
• The wind gallery tests showed a saving of 6 watts at 45 km/hour compared to a normal sock.
• The stretch fabric covered in silicone that covers the shoe facilitates the air flow.
• Lycra® with grooves on the ankle part designed to encourage the outflow of air.
• Polyurethane tape in the back in the back to keep the cover in place.
• Ykk® zipper.
• Colour: Black.