The Rosso Corsa sock represents the highest level of performance in Castelli’s sock collection, developed to meet the demands of the most demanding cyclists. This Girona edition brings a subtle cultural reference to a proven performance product. The design draws inspiration from the local cycling scene, connecting Castelli’s most advanced sock to a place known for its strong riding culture. Built for comfort, support, and breathability, it’s designed to perform on every ride, from training days to hard efforts, wherever you choose to ride.