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Cooler, lighter, and looser than ordinary 5K races, Chicago Undie Dash is the closest you will get to wearing absolutely nothing at a hot summer race. This is not your every day 5K; it is much, much more. The Undie Dash is a race, dance party, social gathering, and social media hotbed all rolled into one. And our runners do it all in their underwear!

This year, the Undie Dash has teamed up with Bright Pink. Fundraise to participate as an individual ($100 fundraising minimum*). The Undie Dash experience is mission-infused from start to finish and and will raise important funds for Bright Pink's educational and support programming nationwide. All participants will receive a Bright Pink gift and access to this one of a kind opportunity to Flirt with Nature in a 5K race in your Bright Pink undies. The top three fundraisers will be awarded a Bright Pink gift bag.

Attire: Special fabrics and exclusive patterns? Show us what you’ve got. For health and comfort, we encourage sensible, serviceable, and satisfactory fashions. Wear what you like. But whatever you do, don’t be caught with your shorts down. We mean it - no nudes. This is one time no one wants to get more than their eyes bargained for.

There may even be a prize for the best costume.

Post-Race Details: Stay tuned for details regarding post-race events.

*By creating a fundraising page, you have committed to raising a minimum of $100. The creation of this page guarantees your admission to the race. Bright Pink will pay your race fee and register you for the race. There is no need to register yourself once you have created this page. If you do not meet your fundraising goal by August 2nd, 2012, you will be asked to cover the difference via credit card payment.