76% Cotton, 24% Nylon for comfort and durability. Suitable for use with virtually any kind of shoe.

-The 1000 Mile unique double layer cotton/nylon sock was initially developed as a medical aid for sufferers from poor circulation and foot associated problems, especially among diabetics. As the benefits and reputation of the sock spread, athletes became interested in the socks as a means of preventing blistering, and controlling perspiration, during their training and competitive running programmes.