A buyer - that wouldn't be named - bid over $100,000 at an auction in Hong Kong just to get the iconic self-lacing Mag shoes! Why, you might ask. Take a closer look - these particular sneakers Marty McFly wore in part two of the Back to the Future trilogy. If you wish to own a pair like that, now is your chance.

Nike Mag, or better know as the Back to the Future sneakers, have been made available in a very limited stock. 89 pairs can be obtained if you enter a $10-per-ticket online draw via nike.com/mag (you can buy as many tickets as you like), launched by Nike and Michael J. Fox Foundation for Parkinson's Research (MJFF), which is trying to find a cure for Parkinson's. 

The first Draw happened on Tuesday, October 11, but the winners will be notified of their prize in a few days, on Monday, October 17. According to MJFF website, the remaining pairs will be auctioned live in Hong Kong on October 11, London on October 14 and 17 and at MJFF's benefit gala A Funny Thing Happened on the Way to Cure Parkinson's on November 12 in New York.

Since chances of winning a pair are very slim to begin with and even slimmer on a global level (as they will mostly be offered to residents in the US and Canada), you might find some comfort in the fact that something cool is happing next month as well. In November, Nike will launch the second generation Nike Mags with the revolutionary adaptive lacing HyperAdapt 1.0 technology and this is when you will (again) get your chance to properly geek out and gear up in Marty-style!

Here's a message from the legendary Michael J. Fox himself as found on the official Nike website: "With your help, we will continue doing whatever it takes to speed a cure for Parkinson's. 100 percent of proceeds from the Draw support the high-impact programs of the Michael J. Fox Foundation. The future is now."

See CEO Mark Parker announce the launch of the limited-edition Nike Mag with individually responsive "power laces", first imagined nearly 30 years ago.