In case your treasured Ice Age Trail footprint hat has gotten grotty from wearing it hiking or doing trail work, you can easily renew it! Here's the secret:
Just wash it in cool water in your washing machine with other clothes. It might help to pretreat sweat stains with your favorite. Then air dry. The bill is really plastic inside, and the suede handles washing just fine. The footprints hold up through the wash.
Voila! Your new Ice Age Trail footprint hat.