Wide stretched Top : Wide stretched top makes the ankle lighter, super comfortable and breathable, avoid slip-off and stay put for walking and running. Seamless toe : Truly seamless toe, eliminates bulky toe seam, reduce the risk of infection, foot pressure, blistering. Specially made for sensitive feet. Moisture Wicking : Powerful moisture-wicking poly-duvetyn yarn provide an unparalleled dryness, which is super comfortable for casual. Solid Durable : Reinforced heel and toe helps provide superior resistance and outstanding durability. These socks come in an over the calf length; 4 pairs socks contains; Machine wash; Sock Size:10-13. Machine Wash. 80% super soft poly-duvetyn yarn, 5% nylon, 15% elastane, keep your feet warm during the whole day.