Brown hat, cotton material with a checkered lining. - Color: Brown - Design: Acorn hat style - Material: Cotton - Features: Checkered lining Thank you for viewing. The size is 50cm. My child was popular with other moms when wearing it in the fall! It also has a chin strap. The inner fabric is a bit shallow, so it doesn't feel like it's being worn deeply, which seems to provide good visibility. I have cleaned and stored it at home, so it's for those who are not overly concerned about minor details.