Celebrate your favorite sports player this upcoming season with these officially licensed 'Signing Bonus' crew socks from For Bare Feet! These socks are constructed of 83% acrylic, 14% polyester, 2% rubber, and 1% spandex and feature knit-in graphics of your favorite sports hero. Size youth fits most children, Medium fits women's shoe size 6-11 / men's 5-10, Large fits men's 10-13, and OSFM fits women's size 6-11 / men's size 5-12.