Cold? Yes. Pants? No way.
Pants-free days were launched in 2002 by Improv Everywhere in New York and have since taken off (literally). The rules are straightforward: Take off your pants, maintain a straight face, wear non-offensive* underwear. (Also, pay your fare.)
In Seattle, where Emerald City Improv hosted its third “No Pants! Light Rail Ride,” in 37-degree weather.
The improv groups ask that the pants-less remain in character, walking around their cities as if not wearing pants is completely normal.
*About that underwear: Emerald City Improv specifies: No thongs, jock straps and see-through briefs, among them.