The process of cleaning holes and range hoods by Balenciaga Cola is as follows:

1. Wash the hat with water, and the brim need not be very wet.

2. Gently scrub the dirt with a soft brush dipped in laundry detergent.

3. Brush the part of the circle that contacts the skin of the head as thoroughly as possible.

4. After washing with detergent, wash with clear water twice.

5. Prepare two towels with good water absorption as the filler of the hat and shape the hat.

6. Put it in a ventilated place, spread a towel with good water absorption and dry it in the shade.