The thickness of the fabric is moderate. The hat body is a single layer of fabric, without inner lining. The classic curved brim hat is hard and straight, without selecting face shape, cool and stylish, natural and comfortable and breathable, light and dry, with sweat absorption band added inside, which can absorb sweat and remove moisture, and can fit the head circumference well. The hat is equipped with a metal adjusting button, which can freely adjust the size of the cap circumference, and is practical. It is available in all seasons. The vent design is not stuffy, light and not easy to change, and convenient to carry, Fashion hat type. Suitable for daily, outdoor, sports, outdoor activities, travel, etc