The next best thing to a bionic foot is robots on your feet. These little guys can help you with your normal daily tasks like walking and kicking, and can also help you look really cool. All of Sock It To Me's socks are made of fabrics that contain a cotton, polyester, and spandex blend. Also, for long lasting socks, the designs of these socks are woven into the sock. Very nice quality socks that make great gifts for all!