Over-the-calf, terry rib knit, for custom fit. High density cushioning surrounds entire foot and lower leg. Custom shrink treated Merino wool. Ribbing above the ankle ensures a proper fit. Reinforced heel and toe. Elastic support around the arch. Ring toe construction for a comfortable, invisible seam. Contents: 70% Merino Wool, 26% Nylon, 4% LycraŽ Spandex |