Sockguy Tall Wool Crew Socks The Sockguy Tall Wool Crew Socks come in a 6" cuff cut and are made from Turbo Wool, a superior blend of 50% Merino Wool and 50% Polypropylene, which makes it just about 5 times as strong as Merino Wool on its own. They are also itch free as well as shrink resistant, so you're guaranteed to enjoy them to their full extent. The Sockguy Tall Wool Crew Socks also provide superior insulation in all weather conditions which will keep your feet will stay nice and cozy when the temperature drops. Size Chart SIZEUS MENSUS WOMENSEURSmall / Medium5 - 96 - 1037 - 42Large / Extra Large9 - 1310 - 1443 - 48 | Sock Guy | Tall Wool Crew Cycling Socks Men's | Size Large/extra Large In Black