There are socks and then there are DeFeet socks. When you bike, hike, run or ski, you need an advanced sock for protection, performance and comfort. DeFeet socks are the ultimate performance wear. They're the original airflow design sock; in 1992, Shane Cooper reversed traditional methods and discovered a revolutionary way to knit, the result was DeFeet. Since then, DeFeet socks have been worn in major athletic events such as the Tour de France. DeFeet socks are high-tech and extremely stylish. They offer socks for cycling, running and other sports.