Ball Cap Earband

As mentioned in The book of Joe

What a dilemma!
You want to wear your favorite baseball cap but it's getting nippy: what to do?
Simple — stay home.
No, wait a minute, that's not right... hold on....

OK, we're all straightened out here — sorry for the interruption.
You get yourself one of these great–looking Ball Cap Earbands, that's what you do!"

Split in the middle, this ear warmer / head band fits around your hat's bill, keeping head, ears and forehead warm.