If you've been waiting for 2015 since 1989, this one's for you. After years of speculation, Nike is auctioning off 1,500 pairs of the Nike MAG self-lacing shoe—the same shoe worn by Marty McFly in Back to the Future II—on eBay to support the Michael J. Fox Foundation for Parkinson's research. (Sorry, the power laces are due in 2015.) They went all out in advertising the charity effort in the detailed, long-ass spot below, starring Kevin Durant, Bill Hader, Christopher Lloyd, Tinker Hatfield and Donald Fullilove. Doc utters his trademark "Great Scott" like he must in every commercial that references Back to the Future. And most important, you get to see the new shoe in all its glowing glory. The whole effort is wittily called Back 4 the Future, and you can examine the shoe in more detail on the website. To bid on the 2011 Nike MAG shoes, go to nikemag.ebay.com. Do it for Parkinson's research or just for kicks. After the jump, check out the video intro for the shoe and a clip from Fox himself about the campaign.