75% Combed Cotton/ 21% polyester/ 4% Spandex. STYLE: Designed with full cushion on the foot, these athletic crew socks are great for daily go-to socks. Perfect gifts for the boys for birthday, thanksgiving day and Christmas holidays. SIZE: Sold as 6-pair, Sock 9-12Years/Shoe Size Size 2-5. Please refer to our size chart to see the sock position around your feet. PERFECT FIT: Full cushioned foot bottom to prevent blisters and keep feet dry, ribbed elastic top to stay up reliably, easy to put on and take off. Great for workouts or long days standing. GUARANTEED QUALITY: 100% LUXURY QUALITY GUARANTEED – All of our socks are designed originally by IMOZY with premium quality materials, ultra-soft inside and out, breathable, stretchable and durable. INSTRUCTIONS: Hand wash recommended. Machine wash cold. Tumble dry low.