Cotton baby hat with polka dots, size S. I thought my son could wear it, but his head was bigger than expected, so unfortunately, he couldn't use it. I'd like to pass it on to someone who can. The sun is getting stronger, so it's perfect for this time of year! It has been stored at home, so I hope someone can use it. - Design: Polka dots - Size: S. The diameter from rubber to rubber is 16 cm, so I think it's about 46 cm. Thank you for looking.