Suitable for head circumferences of 21-23 inches. Button closure Hand Wash Only You must love the ponail hole behind the sun hat as it is too hot to have down for long in summer. The ponail hole is in the perfect place to allow you put your up or you can leave it down. Sun hat provides comfortable wear and excellent sun protection while outdoors. Were sure you can get all the compliments when you wear the ponail sun hat. One size fits most ladies. You can easily adjust head circumference with the elastic buckle behind the sun hat. The adjustable chin strap is durable and easy to slide up and down, ensuring that the summer cap does not fall in strong winds. Wide brim length is 3.35 inches, it is wide enough to protect the face and neck from the sun and provides excellent protection from UV rays. With foldable side snaps, it can be worn in different fashion styles: cowboy hat style and flat brim hat style. Casual stylish sun hats are perfect choices for outdoor, beach, gardening, fishing, safari, camping, hiking, hunting, pool, travel, climbing, mountaineering, boating, golf, etc. This sun hat will be your staple hat for the entire summer Designed with mesh portion on the sides of the crown to create airflow aro your head so it will not develop an odd smell and always keep your head cool and ventilated. The built-in sweatband absorbs sweat and prevents sweat from running down. Summer sun hat is waterproof, quick-drying, breathable, anti-sweat, lightweight and durable. The foldable material folds freely and can be restored to its original shape for easy carrying or bagging. Hand wash and hang to dry.