Groupama, FDJ Aero Race Socks Marginal gains at WorldTour level. These Groupama, FDJ aero race socks are designed for performance, using aerodynamic fabrics to smooth airflow and reduce drag. Aero socks like these are commonly used by pro riders to save between 5 to 10 watts at speed, making them one of the simplest performance upgrades available. All of this kit has come directly from the Groupama, FDJ service course after we completed a deal to purchase their team stock. This is genuine WorldTour equipment used by riders at the highest level. Manufactured by Alé, the premium Italian cycling brand known for high performance race kit, these socks combine aerodynamic efficiency with comfort for racing and fast training rides. Genuine Groupama, FDJ team issued aero socks Direct from the team service course Aerodynamic race construction Designed to save 5 to 10 watts Lightweight breathable fabric Used by WorldTour riders Made by Alé Worth over $90 AUD From the World Tour to your door