SEPTA riders got an eyeful on Sunday when riders ripped off their pants and stripped down to their underwear for the annual No Pants Subway Ride.

Participants braved bitter cold temperatures and met at the Clothespin statue at 15th and Market in Center City yesterday around 2:30 p.m. and made their way to the subway, where after a few stops they were told to randomly "remove their pants."

The event drew a mixed crowd, including a participant who would only identify himself as Waldo.

Some SEPTA passengers, such as snack-selling Kory Capers, seemed a bit surprised when participants suddenly began shedding their clothes.

According to a SEPTA spokesperson, there were no incidents or complaints as a result of the event. After riding on the Market-Frankfort and Broad Street Lines for a couple hours, riders slapped their pants back on and met at Lucha Cartel for an after-party.

Tens of thousands of people ripped off their pants on subways in over 60 cities around the world, according to Improv Everywhere, a comedy collective that has organized the annual event since 2002.

"People who don't understand what we're doing will look at us like we're doing something bad or wrong," Peter Saez told the Associated Press moments before entering a Manhattan station in New York City. "It's just for fun. It's a fun trip, that's all."

Philadelphia's event, which was not associated with Improv Everywhere, was organized by Got Laundry?, a pickup and delivery laundry service which told participants to "Participate at your own risk." Participants were asked to show up with extra pants or other clothing to donate to charity.

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