Thank you for viewing! This is an aimoha kids' hat with a chin strap. I purchased it new on ZOZO and my son wore it about twice. My son has a large head, and it became too tight for him before he turned 2. There is elastic in a part of it, so it has some stretch. I'm selling it because he's outgrown it. - Brand: aimoha - Size: F Height: approx. 12cm / Head circumference: 50.5cm / Brim: 5cm - Design: Stripes - Material: 70% cotton, 30% polyester It's the perfect hat for spring and summer outings. *It will be folded up small for shipping.