1. Pay attention to the maintenance and storage of hats. After taking off the hat, do not place it randomly. It should be hung on a coat rack or a clothes hook. Do not place heavy objects on it to avoid deformation. If you wear a sports hat for a long time, the inside and outside of the hat will be stained with grease and dirt, which must be washed off in time.

2. The hat lining can be removed, washed, and then stretched to prevent sweat stains on the hat lining from becoming damp and moldy, which will affect the life of the hat. The dust on the hat should be brushed frequently. To remove mud and grease adhering to the surface of the cap, use a soft brush dipped in hot soapy water to scrub gently, and then rinse with clean water. When washing a hat, you can find a round jar or porcelain basin of the same size as the hat, put the hat on it and then wash it to avoid losing shape.

3. When collecting hats: brush off dust, wash away dirt, dry in the sun for a while, then wrap it in paper, put it in a hat box, store it in a ventilated and dry place, and put it in the storage box at the same time. Built-in desiccant to prevent moisture. Disassembly and cleaning of knitted hats is special. If the hat cannot be soaked in water (such as feathers, sequins, or paper-backed hats, etc.), it cannot be washed. If the hat is made of cotton, it can be washed.