Then, put in a couple of drops of laundry detergent or a tablespoon of a stain removal powder.

Remove sweat stains from hat. Once you let the hat sit, remove it and rinse it under warm, clean. Soak your hat in a cleaning solution of vinegar and water overnight. If the color remains, move to step 4.

Test clean a small area underneath the brim. Dishwasher and hat washer cage. Wipe away the powder with a clean cloth to see if the stain has been absorbed.

Stir the water occasionally to help rid the fabric of stains. Vinegar is a great natural cleaner that can be used to remove sweat stains. Make a baking soda paste.

After brushing the hat with a brush, apply some powdered or liquid dishwashing soap. Rub it on the stain and let it sit. (sweat contains minerals and salts, hence salt.

Apply diluted vinegar directly on the stain. To clean sweat stains from the hat, especially the tough ones, try to apply baking soda mixed with water on the stain. Summer activities leave your favorite hat with ugly sweat stains?

Make bubbles by moving around. Just wet the stained area with water and then rub in some soap. Here is how to clean sweat stains from your hat and looking good as new.