The liner absorbs the sweat and helps prevent stains.

How to remove sweat stains from leather hat. To clean sweat stains from the hat, especially the tough ones, try to apply baking soda mixed with water on the stain. When stains like sweat tarnish a piece of leather furniture, special measures must. Wipe away the powder with a clean cloth to see if the stain has been absorbed.

Finally, rinse off your hat with cool water. The best way to clean leather depends partly on how it has been produced and treated. Fill a sink or bucket with cool or warm water.

Give the hat time to soak, as many as 4 hours may be needed. Wait at least an hour to let the powder soak up the sweat stain. Wring it thoroughly so that the material is merely damp;

Here is how to clean sweat stains from your hat and looking good as new. Dip a white (do not use colored rags) microfiber cloth into mild, soapy water. Be sure to clean up all the baking soda.

For very tough stains, spot treat with a mixture of mild detergent and water. To eliminate sweat stains, use a paste. Rinse by wiping with a clean white cloth dipped in water.

Perfected in professional baseball and engineered to remove clay, grass, mud, blood and sunscreen. Soak the hat for 20 minutes in the solution, then soak the stain. Rinse until all of the soap is gone, slightly squeezing the hat to get excess moisture out.