EvoShield Performance Crew Socks have been battle tested on the playing field to make sure they would be the best protection for your feet both on, and off the field. They are constructed from 85% Polyester and 15% Spandex for an ultra-light feel that's both durable and comfortable. Extra padding in the sole of the socks provide increased comfort without sacrificing that lightweight feeling. A far cry from your ordinary, basic athletic sock.