One Pair Marcoliani Men's ExtraFine Merino Mid Calf Herringbone Dress Sock 80% ExtraFine Merino Wool/20% Nylon Super-soft, Cushiony ExtraFine Merino Wool in a perfect dress sock weight U.S. Orders over $66 Ship Free UPS/FedEx Ground - Orders received by Noon EST ship same day One of the most confortable socks we carry with a bit of nylon for durability. Machine washable fits shoe sizes 8-12 Machine Washing Warm and Drying Without Heat will offer the greatest longevity Marcoliani-Milano - A Talented and Experienced Artisanal Italian Family Sock Maker