[Product performance]The fabric is soft, comfortable and breathable, the brim is strong and textured, concise and not deformed, sunshade and sand-proof, durable, good heat resistance, the top of the hat is reinforced, the front of the hat is lined with a sponge composite layer, and it is comfortable and stylish to wear. It is used on the back of the hat. Encrypted PC net, with good ventilation function, natural, comfortable and breathable, light and dry, adjustable double-breasted design on the back, freely adjustable cap size, suitable for many people to wear, strong practicability, suitable for spring, summer and autumn, not stuffy, light Not easy to change and easy to carry, fashionable hat shape, long-lasting profile. [Applicable scene]Daily, going out, sports, outdoor activities, travel, etc. [For people]Unisex. [Washing instructions]It is recommended to wash by hand and wash less. Do not press and rub, not machine wash.[Special Note]This size data is normal due to different measurement methods. The error is within 1-2cm.