Material: Baby crew socks are made of cotton 79.9%, nylon 18% and spandex 2.1%, 6 pairs. Size: Baby socks fit for 6-12 Months girls. Occasion: Infant cotton socks are soft and comfortable, fitting to wear in spring and autumn. Washing method: Seamless baby girl socks are easy to clean: Machine wash or hand wash in cold. Return & exchange: If you have any question about our product, don't hesitate to contact us, and we will reply you in 24 hours. If it is necessary, returning and exchanging goods are allowed in 30 days.