Wipe away the powder with a clean cloth to see if the stain has been absorbed.

How to get rid of sweat marks on hats. Test clean a small area underneath the brim. Grab a clean toothbrush and dip it into the mixture and scrub off the remaining sweat stains. Wipe the excess cleaning solution away with a damp cloth.

Be sure to clean up all the baking soda. To eliminate sweat stains, use a paste. It will shrink the hat, and if the stain is not fully removed, it will set the stain.

To clean sweat stains from the hat, especially the tough ones, try to apply baking soda mixed with water on the stain. How to get rid of sweat stains on dress shirts. After brushing the hat with a brush, apply some powdered or liquid dishwashing soap.

Dishwasher and hat washer cage. Fill a bowl with the warm water and the vinegar. Use a hat shaper in the wash machine to avoid damaging your hat.

It doesn't matter how physically fit you are, or how pretty. Summer activities leave your favorite hat with ugly sweat stains? Work the tenderizer into the stain with your fingers or a toothbrush.

Gently scrub in a circular motion. Wipe away sweat stains with a cloth like a microfiber cloth, damped with water and a little dish soap. Use a combination of hydrogen peroxide and water.