If the hat appears to be constructed of quality material, has durable stitching, and has a plastic brim, it is a good candidate for washing. [substeps] Do not attempt to wash a hat with a cardboard visor.
[header] How to clean a white hat [title] Examine the hat. [step] Before you decide to wash a white hat, you should carefully examine it. Look at how the hat is stitched, at the headband, and at the brim.