Boston Red Sox 47 Socks - Duster - Navy. Can be either color way. The '47 Duster crew has durable stretch, footbed cushioning and arch support. Made with 100% polyester fibers to keep feet dry. Medium: Men's shoe size 5-8.5 Women's shoe size 5-9.5 Large: Men's shoe size 9-13 Women's shoe size 10-12