There are several methods you can use when it comes to cleaning your cap, all of which do not involve putting it in the washing machine. Knowing the type of fabric and how dirty your cap is will help you choose the best cleaning method for your cap.

NOTE: Before cleaning your caps, make sure you always check the care label first to avoid unwanted mishaps.

Hand Washing

Washing your cap by hand is the most effective and safest way to clean your cap. This method is best suited for baseball caps, wool, and hand-knitted caps.

1. Fill a sink or bucket with warm water.
2. Add a few drops of mild detergent to the water- laundry detergent, liquid dish soap or mild shampoo- making sure the water isn’t too soapy.
3. Grab an old toothbrush or cloth and spot clean the dirtiest areas of the hat first with the soapy water, before moving onto the other areas of the cap.
4. Let the cap soak in the soapy water for a few minutes up to a few hours.
5. Rinse the cap off with cold water and gently squeeze to remove excess water.
6. Let the cap air dry indoors, away from sunlight and tuck a hand towel inside the cap to keep it’s shape. 

Spot Treating

Spot cleaning is another safe cleaning method and is best used for caps made out of delicate fabrics, like leather and suede caps.

1. Dab the cap gently with a damp washcloth from a mixture of water and mild detergent or dish soap. If your cap has a tough stain on it, try a natural stain remover as these are more gentle for the fabric. 
2. After spot treating, allow the cap to air dry in a well-ventilated area, away from direct sunlight.

Dry Cleaning

For non-washable caps, dry cleaning is the best way to get them cleaned. You can invest in a home dry cleaning kit or take your cap to a professional dry cleaner.