SIZE:15.75 -19.7in,Our hats are suitable for most baby boys and girls with good stretch and fits perfectlyMATERIAL:Our hats are made of high quality cotton polyester, softer than other knitted hats.Not only will it not hurt the baby and the child's fragile skin, but also protect your child's head and ears in the cold winter.DESIGN:Unlike other knit hats, there are two pompoms on the ears of the hat, which look very attractive.Special design and unique structure, a popular item.FUNCTION:ski, motorcycle, run, climb or simply hat for cold weather, suitable for both outdoor and indoor,And its also good for photograph