Some Wearcaps contain a little glue or shellac to bind together shape and material. You can easily refresh your hat with a few clever tricks.
One is holding the hat over the electric kettle and steam it for a bit – as you do with suede shoes.
The other method is to use a little alcohol in a nebulizer – and spray over the hat with a pretty nice layer. Rather more times than a heavy burst.
Keep in mind that the hat should not be wet, only moistened with some alcohol or steam – and remember that it must dry before use.