This bucket hat is made of polyester-cotton, which is refreshing and breathable, sun protection and quick drying. Suitable for spring, summer and autumn. The circumference of the top of the hat is 22 5/6", the width reach 3 9/16" when the brim is fully expanded, and the inner depth is 4 5/16 cm. Equipped with a strap with adjustable circumference, which can be customized according to different head shapes. Windproof rope can be fixed under the chin to prevent it from being blown away by the wind. There are also two buttons on the brim, which can be rolled up like a cowboy hat. Suitable for outdoor activities such as hiking, traveling and fishing. 22 5/6"C