Thousands of train commuters in 60 cities around the world stripped down to their underwear on public transport for the annual No Pants Subway Ride. The idea is for participants to maintain a nonchalant air, chatting with fellow passengers, listening to music, reading newspapers, while keeping a straight face as if all were perfectly normal.
The No Pants Subway Ride began in 2002 in New York with only seven participants and has grown into a global phenomenon. Organisers call it "an international celebration of silliness". The event is coordinated by Improv Everywhere, a global flash mob. Even families took part, carrying babies wearing just their nappies. A Berlin woman had a cat's face splashed across her cheeks. At London stations, coats and scarves warded off the chill — at least from the waist up. Participants in Jerusalem drew stern stares from Ultra Orthodox men.
IBTimes UK rounds up some of the best No Pants Subway Ride photos from around the world. A woman has a message for her fellow commuters in New York Stephanie Keith/Reuters A man takes his trousers off on a New York subway platform Stephanie Keith/Reuters A man checks out a woman travelling on a New York subway train in her underwear Stephanie Keith/Reuters Two women travel on a New York subway train in their underwear Stephanie Keith/Reuters A man travels on a New York subway train in his underwear Stephanie Keith/Reuters People dance in their undies at Union Square subway station in New York Stephanie Keith/Reuters People in their underwear take part in the annual No Pants Subway Ride in New York Stephanie Keith/Reuters A New York City police officer stands guard during the annual No Pants Subway Ride Stephanie Keith/Reuters No Pants Subway Ride participants dance on a New York City subway platform Timothy A Clary/AFP A baby snoozes in a pram on a subway platform in New York Timothy A Clary/AFP Participants in the No Pants Subway Ride stand on a New York City subway platform Timothy A Clary/AFP A woman pole dances on a train in Washington DC Andrew Caballero/AFP A woman in her underwear has her photo taken in a photobooth at a London Underground station Leon Neal/AFP People queue for information at Paddington train station in London Leon Neal/AFP Participants in the annual International No Pants Subway Ride arrive at Paddington train station in London Leon Neal/AFP Two men participating in the No Pants Subway Ride travel on a London Underground train Leon Neal/AFP People take part in the London version of the No Pants Subway Ride Leon Neal/AFP People travel on the London Underground in their underwear Leon Neal/AFP Participants in the annual No Trousers On The Tube Day travel on the London Underground Paul Hackett/Reuters A woman in her underwear stands on a Jubilee Line escalator in London Paul Hackett/Reuters People take part in the No Pants Subway Ride in Berlin Hannibal Hanschke/Reuters A couple pose for pictures during the No Pants Subway Ride in Berlin Hannibal Hanschke/Reuters A mother and her son take part in the No Pants Subway Ride in Berlin Hannibal Hanschke/Reuters People in their underwear take part in the No Pants Subway Ride in Berlin Hannibal Hanschke/Reuters Two men in their underwear wait for a train in Hamburg, northern Germany Bodo Marks/AFP Passengers pose in their underwear as they wait for a train in Prague's subway Michal Cizek/AFP People stand on an escalator during the No Pants Subway Ride in Prague, Czech Republic David W Cerny/Reuters People stand on a train platform during the No Pants Subway Ride in Vienna, Austria Heinz-Peter Bader/Reuters People in their underwear sit on a train in Vienna Heinz-Peter Bader/Reuters An Israeli man in his underwear waits for a train in Jerusalem Ronen Zvulun/Reuters Israelis travel in their underwear on the light rail in Jerusalem Ronen Zvulun/Reuters A man stares at commuters travelling on a Jerusalem light rail train in their underwear Ronen Zvulun/Reuters