Once again, New York City commuters dropped their long johns and tights on Sunday for the annual No Pants Subway Ride.
Undeterred by a particularly nasty flu season , thousands of participants were expected this year.
The event, put on by the group Improv Everywhere, also takes place in more than 50 countries, according to their website .
“The mission started as a small prank with seven guys and has grown into an international celebration of silliness, with dozens of cities around the world participating each year.”
2013 marks the 12th anniversary of the No Pants Subway Ride.