Bop Classy fun and colorful cotton socks work well with a suit, dress slacks or casual wear. They are good for any occasion including work, school, party, wedding, prom, or Sunday go-out. Pick your theme! They're made from a comfortable and durable 80% Cotton, 10% Polyester, 5% Spandex blend fabric. They're and will fit sock sizes 10-13 which is generally US men's shoe size 8-12. Made in Korea.