– For greater comfort and durability, our socks have reinforced toe and heel with anti-chafing seams. In addition, the shank is elastic and has a support arch on the instep to fix the sock to the foot. The high quality Coolmax fabric is moisture wicking, soft and comfortable. – Unisex medium length socks (Height: 16 cm) for all weather conditions. – 80% Coolmax® 10%Cotton 6% Nylon 4%Elastic