The Assos RSR Speed Socks S11 are aerodynamic racing socks designed as a drag-reducing solution when shoe covers arent an option. Developed with input from World Tour athletes, they feature a bi-stretch 550CX warp-knit textile on the lower leg that enhances airflow while maintaining a second-skin fit. The foot is constructed from fast-drying, breathable yarns that regulate temperature and wick moisture without sacrificing comfort. An 18cm UCI-legal cuff delivers aerodynamic benefits and added stability. Circular Seamless construction eliminates friction for a smooth, race-ready fit. The Assos RSR Speed Socks add an extra edge to your aero setup.