Are flat-caps worn a lot in the mid-west? I don't see them much where I am at. And when I looked up the style, they made a comeback apparently, last year with Peaky-Blinders. But this style cap seems more British or Irish.
This guys entire outfit might be worth noting. It's not outlandish in anyway. Quite the opposite. But maybe as nondescript as he appears, he's actually trending a wee bit. Flat-cap, hoodie, blue over-sized jacket, baggie jeans and boots.
Hmmmmm. Have no idea. But the choice of hat seems a little telling somehow.