These performance socks are made from the highest-grade wool available, resulting in unmatched comfort and moisture management capability. Because the wool fibers have a natural crimp to them, they are cushiony and return to their original shape instantly. Made with just enough stretch nylon to ensure a snug fit. Non-itchy as well as being machine wash and dryable, these socks are at home inside motorcycle boots like no others we’ve tried. Light Weight is grey or black, while the Medium is grey. All are 74% luxurious, soft, durable merino wool. Crew height. M (6–8.5), L (9–11.5), XL (12–14.5).