Material: high-quality denim sewing technology + tight weave structure for water and rainproof and excellent sun protection.This sun hat has a brim of approx. 6.5 cm, a hat height of approx. 8 cm and a cap circumference of approx. 57 cm. It is equipped with an adjustable windproof chin buckle and an adjustable Velcro fastener. This sun hat is an adjustable one Chin strap that can keep it in place on windy daysThe top is completely soft and foldable. The foldable edge material can be folded up and down in a variety of cute styles while keeping the shape and can be easily slipped into your pocket. Suitable for work outdoors, travel, outdoor activities, shopping ...The sun hat design is a popular retro style this year, similar to the bucket hat and truck hat. At the same time, the edge length is 6.5 cm, which makes your face compact and fashionable when worn.Note: Please allow small errors in manual measurement. If you have any questions, please contact us.