- Size: 36-42 • High-quality material: 90% classic cotton and 10% elastane, more comfortable than 80% cotton socks. Machine washable, with smooth toe seams, high elasticity cuffs, and soft, breathable material to keep feet comfortable all day. • Universal size: suitable for sizes 36-43, with good elasticity. They fit perfectly without being too tight or loose. The sole and toe are made of abrasion-resistant material, protecting the skin of the toes and heel and prolonging the life of the socks. • Ideal gift: perfect for parents, partners, or friends on birthdays, New Year, Christmas, Valentine's Day, or special holidays. Ideal for use in leisure time, at home, at work, at school, at parties, and other activities both indoors and outdoors.