hatband

Etymology

hat + band

noun

1. A band fastened around a hat.
   Popping in crimson, yellow, blue and white and tricked out with crystals, feathers and hatbands made of crocodile or contrasting ribbon, today’s fedoras would look at home on any villain in a ’70s Pam Grier movie — but executed with more finesse, and with a price tag to match — from $300 to $1,500. January 18, 2007, David Colman, “Old Hat? Not on a Young Head”, in New York Times