Raffle of 86 pairs of Nike self-lacing shoes raises $6.75 million for Parkinson's research

A Nike raffle to win one of 86 pairs of self-lacing, "Back to the Future"-style MAG shoes raised $6.75 million, the Michael J. Fox Foundation for Parkinson's Research revealed Thursday.

Nike sold $10 tickets from Oct. 4-11 and notified winners on Monday. Nike will donate money raised from the raffle to the foundation.

Taking into account the 1,500 pairs of MAG shoes -- which were not self-lacing -- that were auctioned off on eBay in 2011, plus a matching donation, Nike has now raised more than $16 million for the foundation.

"Thanks to Nike, we've raised a boatload of money for research and we've had a ton of fun doing it," said actor Michael J. Fox, who was diagnosed with Parkinson's disease in 1991 and famously wore self-lacing shoes as Marty McFly in the 1989 film "Back to the Future II."

It's not known how much the winners will be able to sell the shoes for on the open market, should they choose to do so, but Nike has auctioned off three pairs at events that might help set the market. One pair in Hong Kong sold for $105,000, and another one in London sold for $56,800. The final pair will be auctioned off in New York on Nov. 12 at a gala for the foundation.

"We could have never imagined when we started this journey 30 years ago it would have such a wide-ranging effect -- and we can't wait for what's next," Nike chairman and CEO Mark Parker said in a statement.

The MJFF is the world's largest nonprofit funder of Parkinson's research in the world, having contributed more than $650 million to research endeavors.