Lorpen T2WE Merino Hiker 2 Pack Eco socks Two Pairs Together For Use In Low Mountains Or Even As An Everyday Sock. Specifications: - Content: 69% Recoverwool, 17% Red-Cycled Nylon, 14% Stretch Nylon With Lycra® Technology: Recover Wool: - Recover Wool Yarn Is Made From Recycled Postindustrial Wool And Recycled Polyester. The Combination Of This Two Yarns Offers A Superb Balance Between Thermoregulation And Sweat Management.