How to clean the hat?

Take the bottle cap as an example, the operation steps are as follows.

Materials: washing powder, toothbrush.

1. Add a proper amount of washing powder to the basin.

2. Add warm water, and the amount of water is subject to whether you can pass the hat.

3. Mix the washing powder and warm water evenly with tools.

4. Open the buckle of the hat and soak it in water for about 10 minutes.

5. Brush the inside of the hat from the inside out with a brush.

6. Brush the outside of the hat from back to front.

7. After scrubbing, rinse with clear water and hang to dry.

Maintenance: When not in use, put the hat in a clean cloth bag and put it in a ventilated place.