FitSok running socks are engineered using today's best practices in performance athletic sock design and fit. Advanced fabrics like Comfortrel Polyester and CoolMax deliver durability, moisture management, and thermo protection. All of the FitSok's are packaged in 3-Packs because they know you that you put your feet to the test several times a week and want a fresh pair available for every workout. Excellent for the high school and college athletes, XC and tracks teams, or anyone looking for a quality running sock at an economical price.