80% Cotton, 15% Polyester, 5% Spandex 【Low Cut Ankle Socks? —Made of high quality combed cotton, tightly wrapping design make your feet to be adequately protected during exercise. Hygroscopic and moisture wicking properties keeps your feet dry, keep comfortable to wear all day. 【High Performance Sport Socks? —Ergonomic design Constructed with soft plush sole cushioning, suitable compression in arch to protect you when you walking, training, jogging and running, also provides comfort and performance during extended training and activity. 【Material and Size? —Cotton 80%, Polyester 15%, Spandex 5%. Fits Size: US 6-12. Hand washing is recommended, water temperature is not higher than 40°C, it can be ironed under 110? or be airing, but CAN NOT dry clean and bleach. 【Heel Protection? —The little tab on the back is extremely well thought out as it provides protection from shoes rubbing against your heel, and prevent socks from slipping down, enhanced elastane provides additional no-slip security. 【Excellent Choice of Mens Socks? —Simple style easy to match your shoes, fit any everyday dressing for adults and teenagers, suitable for many scenarios such as sports, running, jogging, climbing, cycling, home, business, casual.