I ran in my first organized shirtless winter run yesterday with the Triple Cities Runners Club which I have belonged to for over a year and Confluence Running, a new local running store. It really didn't take much bravado because the day turned out to be surprisingly warm at 38F. It was blustery though with 17 mph winds. So there's that. What did take bravado was committing to doing this run when frigid weather was expected.
Anyway, here are some pictures. I'm the guy with the white headband.