Over 200 runners converged at the Olympic Forest Park in Beijing yesterday, for the 3.5 km annual Undie Run. The special event promotes environmentally friendly lifestyles in the smog covered city. An Undie Run is an event where a large number of people disrobe until they are only wearing just underwear, and then run for fun or either a good cause.
Meanwhile, a lot of joggers sported gas masks as the dangerous smog hit swathes Northern China at the moment. The participants were spotted in full excitement as they took part in the race.
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