The Cap Washer is the solution to give your cap a little new freshness. Because the Cap Washer ensures that your cap retains its shape during cleaning. Caps with a flat visor are washed in the otherwise empty washing machine. Caps with a curved visor can be easily cleaned in your dishwasher. Please make sure that your cap is not heat-dried at the end of the dishwasher process. The Cap Washer is an absolute must-have for every cap wearer!