The future has arrived. So have the self-lacing shoes.

Nike Inc. next year will release the self-tying shoesMichael J. Fox‘s character wore in In the 1989 movie Back to the Future Il. In the movie, Fox’s character arrives in the future on Oct. 21, 2015.

To celebrate the date, Nike on Wednesday presented Fox with the first pair of self-lacing shoes, known as Mags. The company will auction an unspecified number of the shoes in 2016 with proceeds going to charity.

“We started creating something for fiction and we turned it into fact, inventing a new technology that will benefit all athletes,” said Nike CEO Mark Parker, in a news release.

Nike first released the shoe, then referred to as an Air Mag, in 2011. But that version wasn’t self-lacing.

Nike designer Tinker Hatfield apparently continued perfecting the technology, and by Sept. 2013 he and Nike obtained yet another patent for self-lacing sneakers.

The company sold 1,500 pairs of the non-self-lacing Mags in 2011 and gave the $4.7 million in proceedsto the Michael J. Fox Foundation for Parkinson’s Research. In a letter to Fox on Wednesday, Hatfield said auctions of the shoes have raised $9.4 million to date.

The non-self-lacing Mags are among the most collectible sneakers in history with prices averaging nearly $6,000 for unused pairs, according to the data site
Speculation about Nike re-releasing the shoes swirled since early this year when Hatfield spoke about the shoes at an industry conference. Like previous versions of the shoe, the new self-lacing versions will be auctioned to raise money for Parkinson’s research.

“We hope that the combined effort will raise even more than the $9.4 million collected in 2011 and contribute in some way to eliminating Parkinson’s Disease in our lifetime,” Hatfield said in the to Fox.

Nike apparently sees the technology as more than a novelty. The news release said it is testing the lacing system in shoes across multiple categories.