206639LIMSM Features: Custom shrink treated, itch-free Merino wool Ribbing above the ankle insures a proper fit Elastic support around the arch WickIT dry technology wicks away moisture High density terry loop padding in the foot and shin areas won't flatten out under pressure Darn Tough lifetime guarantee Specifications: Fabric: 62% Merino Wool- 34% Nylon- 4% Spandex