Size: US 9-11/Shoe Size 4-10½. | Made of high quality wool material, to keep your feet at optimal level warmth. | Designed for extreme weather conditions, great cold weather gear for outdoor activities and sports like skiing. Terry-loop cushioning throughout the entire foot, making the socks suitable for hiking, mountaineering, outdoor camping, cycling and longtime outdoor work. | Package contains 4 pairs of multicolored socks.They are elastic and perfectly make it suitable for your feet. | Due to the Suitable Length, the Socks Are Easily Match with All Kinds of Shoes, Especial Boots and Sneakers.