Aero Race Pro 20 Sock

What Our Gearhead® Experts Are Saying:

"This sock is a staple in my kit for fast group rides and races. The 20cm cuff gives it that clean aero look, and the fit is dialed—tight enough to stay in place, breathable enough to wear all day. You don’t think socks matter until you wear a pair like this."

In performance cycling, marginal gains matter—and the Castelli Aero Race Pro 20 Sock brings aerodynamic focus to your foundation. Designed with raised aero ribs that reduce drag and improve airflow, this sock is built for speed-conscious riders who want every edge. Its 20cm cuff offers a streamlined profile and pro-inspired silhouette that pairs perfectly with aero race kits.

The fabric blend—85% nylon and 15% elastane—strikes a fine balance between structure and stretch, offering light compression for a secure fit while remaining breathable and moisture-wicking. Whether you’re laying down watts in a time trial or tucked into a paceline, the Aero Race Pro 20 stays locked in place without bunching, slipping, or overheating.

Engineered for cyclists who obsess over gear as much as the ride itself, this sock is the final touch for performance-focused riders chasing PRs, podiums, or just the perfect kit setup.