SockGuy Wool Crew 8" Sock Sporting the same performance standards as the Classic collection from SockGuy, the SockGuy Wool Crew 8” Sock delivers a shrink-resistant and itch-free style suitable for all weather conditions and activities. The unique TURBOwool yarn construction allows for a year-round performance: keeping you warmer in the winter, cooler in the summer. Features: Easy-Fit™ CuffStretch-to-Fit™ Sizing System75% TURBOwool, a blend of 50% Merino Wool and 50% Polypropylene