73.5% Combed Cotton/ 23.5% polyester/ 3% Spandex STYLE: Designed with dinosaur pattern and solid colors, these boys short socks are easy to match clothes and can be wear all seasons. Suitable for sports and daily casual wear. Ideal to be as a gift for kids on children??s day, birthday, thanksgiving day, Christmas holidays. SIZE: Sold as 6-pair pack, 3 sizes for your options, that??s Sock 2-3Y/ Shoe 6.5-10, Sock 4-6Y/ Shoe 10.5-13.5, and Sock 7-9Y/ Shoe 1-4. Please refer to our size chart to choose the appropriate socks. 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. PERFECT FIT: Comfortable ribbed elastic top to stay up reliably, easy to put on and take off. Y heel design could fit the feet better and not slide off easily. INSTRUCTIONS: Hand wash recommended. Machine wash cold. Tumble dry low.