It's no secret that DeFeet is the company that revolutionized cycling socks. Before DeFeet, the cycling sock hadn't changed much in decades. The Aireator changed that with it's flat knit cuff and airflow mesh weave. DeFeet socks have been worn to many victories in the Tour de France, Paris-Roubaix, World Championships and many more. These products are ideal for riding your road or mountain bike anywhere in the world in any condition you will face.