Pair your favorite hiking shoe with this Keen sock for all-day comfort on the trail. Sold as a three-pair pack. Crew-cut style sits at the calf. A lightweight, yet rugged hiking sock. Mesh panel allows the foot to breathe. Contoured arch. Dura-Zone in the toe and heel areas features high-tenacity nylon fibers for maximum abrasion resistance. Wunderseam seamless toe flex for irritation-free wear. Strategically-placed impact cushioning zones. Heel hold cup design for a secure, natural fit. Anatomically designed left and right socks for a better fit and feel. 49% Merino wool, 39% nylon, 8% Dyneema polyethylene, 2% polyester, 2% Lycra Spandex. Machine wash warm, inside out. Tumble dry low. Made in the U.S.A. Measurements: ; Weight: 1.8 oz ; Product measurements were taken using size LG (Men's Shoe 9-12). Please note that measurements may vary by size.