Castelli Fast Feet 4 Socks White, Size 2XL

Castelli

Castelli Fast Feet 4 socks: aerodynamics and performance for racing The Castelli Fast Feet 4 socks are designed to maximize aerodynamic efficiency during road competitions. They are part of Castelli’s Fast Feet project, developed to help save watts when every second counts. Their construction combines a foot section inspired by the Rosso Corsa socks for greater comfort inside the shoe and a leg section in ribbed Lycra® that promotes airflow. Material: Ribbed Lycra® on the leg Fabric technology: Aerodynamic design from Castelli’s Fast Feet project Breathability: Structure that facilitates air circulation Fit details: Race fit with polyurethane grip band at the top Weight: 48 g Specific technology: Construction based on the Castelli Rosso Corsa Sock to improve comfort inside the shoe