The event began in 2002 in New York City with seven members of the improvisational group, Improve Everywhere, known for their flash mobs, boarding the subway without trousers. By 2006, 150 people had joined the fun, feeling the draft as they rode the train without trousers.
Ten years on, the fad has spread to countries like Germany, Czech Republic and The UK, proving the trouserless train ride is still alive and well.
'No Pants Subway Ride' is always planned in winter, and last year 4,000 people participated in NYC alone.
'The idea behind No Pants is simple: Random passengers board a subway car at separate stops in the middle of winter without pants. The participants behave as if they do not know each other, and they all wear winter coats, hats, scarves, and gloves. The only unusual thing is their lack of pants,' Improv Everywhere's website reads.
‘无裤’的理念很简单：在大冬天里，随机派一些乘客分别在不同的车站上地铁。参与者看起来好像互不认识一样，他们都穿着冬季大衣，带着帽子、围巾和手套，唯一不正常的是没有穿裤子。” Improv Everywhere的网站上这么写着。