Bates Men's Tactical Uniform Over The Calf Socks 100% Polyester 70% Ultraspan Polyester, 27% Nylon, 3% Spandex Ultra Dri Moisture Management Wicks Away Moisture For Cool, Dry Comfort Embedded Arch Support To Reduce Foot Fatigue Ribbed Stay-up Top For A Secure, Comfortable Fit Over The Calf Fit