You can't go wrong with these socks from Dan Post! The Cowboy Certified signature boot sock features a reinforced heel, low profile flat seam at toe and reinforced toe. Includes one pair of socks. Made in the U.S.A. Socks are made of 42% ring-spun Sta-Cool® fabric/16% Fortify® AM Sta-Cool®/27% polyester/8% nylon/5% elastic/2% spandex. Fits men's shoe sizes: 9=S(7-10.5), 10=M(10.5-13), 13=L(13.5 & up).