I see London, I see France: Look at people in Arlington running in their underpants

On a brisk Sunday morning in Arlington, it felt chilly for a pantsless jaunt in the D-FW 'burbs. So for anyone joining in on the Undy Run/Walk 5K in Arlington, leggings were in order.

But that didn't make the Undy Run any less fun.

The event on Nov. 12 benefitted the Colon Cancer Alliance. Undy Runs take place in 19 cities in the U.S. and are intended as lighthearted ways to raise money for colon cancer awareness, prevention and research. And yes, people really do run in their underwear!

Take a peek at the photos below. And say it with us: I see London, I see France, I see people in Arlington running in their underpants!