Undie Run partici-'pants' light up frosty streets in E China
Updated 10:32, 28-Jun-2018
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Hardy joggers braved the cold - and some wide-eyed spectators - on Saturday as they competed in the Undie Run in Hangzhou.

Hardy joggers braved the cold - and some wide-eyed spectators - on Saturday as they competed in the Undie Run in Hangzhou.

It was quite a scene as citizens in east China’s Hangzhou, Zhejiang Province gathered on the frosty streets to watch around 100 runners take part in the seven-kilometer-long race.

It was quite a scene as citizens in east China’s Hangzhou, Zhejiang Province gathered on the frosty streets to watch around 100 runners take part in the seven-kilometer-long race.

The only requirement for Undie Run participants is to wear as little as possible - sports shorts for males, sports shorts and tops for females.

The only requirement for Undie Run participants is to wear as little as possible - sports shorts for males, sports shorts and tops for females.

The event aims to make exercising a little more exciting, and to persuade more people to enjoy nature.

The event aims to make exercising a little more exciting, and to persuade more people to enjoy nature.

The earliest known Undie Run took place at UCLA in the US in 2001.

The earliest known Undie Run took place at UCLA in the US in 2001.

The spirit-lifting event is attracting more and more attention, and proving to be much more than just a test of endurance.

The spirit-lifting event is attracting more and more attention, and proving to be much more than just a test of endurance.