Trying to shrink a customized Lids cap?

Question

Trying to shrink a customized Lids cap. Since it's cotton, we were going to throw it in the washer/dryer, but we just want to make sure the brim isn't made of cardboard - does anybody know? It's the Easy fitted cotton blank Letterman hat.

THANKS!

Answer 1

To be on the safe side, check to see if you could put some elastic on it. If it is double fabric, make a tiny slit and use a safety pin to guide the elastic through to another small slit and sew the ends to the fabric.