[APPlICABLE] There are two sizes, one is S size (suitable for 0-1 years old) and M size (1-3 years old) ,which give you more choices both fit for boys and girls.SAFE MATERIALMaterial made of combed cotton. cozy, breathable, durable, with good hygroscopicity, wick sweat away from skin to keep skin of kids cool, dry and light.[ANTI-SLIP] The bottoms Silica gel the socks material for our child's safety. Each individual pair is brightly colored with a different design made to catch the developing baby's eyes.[CONVENIENT] Machine Wash is OK. Ideal gift for your baby and your friends' Toddler baby.Products from LUOLV's store