It is an old model or a product that we can no longer order at the manufacturer.
The Premio 18 Sock from Castelli, designed for demanding cyclists. With their multi-structure knit and 200-needle construction, these Premio 18 Sock offer superior elasticity for optimal comfort. The compressive arch support band ensures a perfect fit, while the asymmetric construction mirrors the natural shape of the foot. Enjoy the padded section under the ball of the foot for increased support during your long-distance rides.