What Our Gearhead(R) Experts Are Saying:"These socks are built for high-performance racing. The InfraRed yarns provide firm compression that keeps my legs feeling fresh on long rides, while the seamless construction eliminates any friction. The 21cm (9in) cuff offers added support and a sleek, pro-level aesthetic. They're incredibly breathable, keeping my feet cool even in the heat. If you're looking for the best race-day socks out there, these are it."When racing demands the best, we turn to the RSR Socks S11, engineered with WorldTour-level compression and ultralight breathability. Developed with elite riders, these socks provide firm, medical-grade compression (25mmHg) to improve circulation, reduce fatigue, and keep our legs feeling fresh throughout high-intensity efforts. The InfraRed yarns deliver a silky-smooth, second-skin feel while enhancing airflow, keeping feet dry and comfortable in hot conditions. A seamless 240-needle construction ensures a friction-free fit, reducing pressure points and maximizing comfort. With a 21cm (9in) cuff, these socks provide added support and a pro-level aesthetic, making them the perfect choice for serious cyclists chasing every watt.