Foozys Men's Crew Socks in Fun Fancy Piano Keys Themed design are the perfect addition to your sock collection. Chose from two styles: black & white or rainbow keys. Made with a unique blend of fashion and comfort, these lightweight and stretchy socks are designed for both indoor and outdoor activities. They fit shoe sizes 10-13 and are made of 78% Polyester, 20% Nylon, and 2% Spandex. Machine wash warm, tumble dry low, and do not bleach. With Foozys, you can enjoy serious socks with a fun and stylish twist.