The Frank Lloyd Wright Tree of Life Women’s Socks design is drawn from one of Wright's most famous motifs, found in the Darwin D. Martin house. The design has been widely influential in art and architecture ever since. These socks are durable and breathable, thanks to the cotton, nylon fabric with a touch of spandex. Content: 80% Cotton/19% Nylon/1% Spandex. Our women's sock translates to a 5 - 10 women's shoe.