San Francisco 49ers NFL Team Wordmark Striped Gray and Team Color Mens Socks (XL 12-15) 88% Cotton, 8% Elastic, 4% Spandex Size XL Ribbed Mens Crew Socks Fits shoe size 12-15 Mitchell & Ness Embroidered Across back of Sock Compression Through out the Entire Sock Providing a Secure Fit Officially licensed, Manufactured by Mitchell & Ness