Baseball hats can get dirty and stained easily. Dirt and sweat can build up on the hat and make it look dingy. There are several ways to clean a baseball hat, but some methods are better than others.The best way to clean a baseball hat is to hand wash it with soap and water. This will remove all the dirt, sweat, and stains from the hat. Be sure to rinse the hat well after washing it so that there is no soap residue left on the fabric.If you don't want to hand wash your baseball hat, you can also wash it in the washing machine. Simply put the hat in a mesh laundry bag or pillowcase before putting it in the machine. Be sure to use cold water and a gentle cycle, and avoid using hot water, bleach, or any other harsh chemicals.Another option for cleaning a baseball cap is to steam it. This can be done with a garment steamer or with a handheld steamer. Just hold the steamer about 10-12 inches away from the fabric and steam until the dirt and stains are gone. Be sure to test a small area of the fabric first to make sure that it won't be damaged by heat.If none of these methods work, you can try using a stain remover pen or a laundry pretreatment spray. These products can help remove stubborn stains from fabric. However, they may not work on all types of fabric, so be sure to test them on an inconspicuous area of the hat first.