SockGuy Wool socks are made from 75% TurboWool, that's five times the strength and durability of Merino wool alone. Shrink-resistant and itch-free.Shrink-resistant and itch-freeEasy-fit cuffStretch-to-fit, 2-size systemMaterials: 75% TurboWool (50% Merino wool and 50% polypropylene), 15% nylon, 10% spandexItem SpecificationsColorBrown/BlackSizeLarge,X-LargeSeasonCool Weather,Warm WeatherCuff LengthCalf, 5-6"Type of MaterialWoolDefined ColorBlack,Brown SockGuy Wool Socks Sock UPC: 091037132352