Patagonia reversible bucket hat featuring a unique bird design. - Color: Green and black pattern - Color: Blue and white bird pattern - Brand: Patagonia - Design: Bucket hat Thank you for viewing. There is no size notation, but when measured with a tape measure, it seems to be about 46cm. Please note that this is a rough measurement. The chin strap is adjustable with Velcro! The item will be shipped folded small. Please consider this item as a used item, and thank you for your understanding.