Socks made by Conscious Step help people, animals and the environment. These are Socks that Give Books. Each pair provides one book to children in Asia through the work of Room to Read. These in Large fit USA Men's 8-13, USA Women’s 9-14. The socks are made of 75% Organic Cotton, 23% Polyamide, 2% Spandex and have a seamless toe. Machine wash warm and lay flat to dry.