This annual tradition challenges participants to jog a chilly mile through Wrigleyville in their skivvies—all in the name of raising money for neurofibromatosis research—before retiring to Slugger's for some scantily-clad drinking. Those who don’t want to run can donate to the cause instead. Cheers to that!
![Cupid's Undie Run sent pantless participants through the streets of Wrigleyville, February 13, 2016.](https://media.timeout.com/images/103134723/750/422/image.jpg)
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