The cold did not deter some brave New Yorkers from stripping down for the annual "No Pants Subway Ride" on Sunday.

It was not even 20 degrees in the city, with wind chills making it feel even colder, but some straphangers went bare-legged for laughs while keeping it rated-PG.

The group Improv Everywhere organized the event, which is in its 17th year.

More than 50 other cities around the world also held pant-less rides.