Hey McFly! Nike unveils auto-lacing sneaker

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Picture of a replica of the sneakers that actor Michael J. Fox used in the movie "Back to the Future'' in 1985, being displayed during an anniversary event at the Fashion Museum in Santiago on October 21, 2015 -- the exact date in the future that Fox's Marty McFly travelled to in a souped-up DeLorean fitted with a flux capacitor in the second part of the blockbuster trilogy. Fans of the series are marking Wednesday's landmark date by celebrating some of the predictions that came true in the futuristic saga -- and some that didn't. The films follow the time-travelling adventures of young Marty, a teenager living in small-town America in 1985 played by Michael J. Fox. He sets out in a DeLorean car converted to voyage the space-time continuum by his eccentric inventor friend Doc Brown. AFP PHOTO / MARTIN BERNETTI (Photo credit should read MARTIN BERNETTI/AFP/Getty Images)

Nike has unveiled its long-awaited sneaker with self-tying “adaptive” laces.

It’s called the HyperAdapt 1.0, and Nike CEO Mark Parker introduced it at the Nike Innovation 2016 event in New York City this week.

How does a sneaker tie itself? Duh!

“When you step in, your heel will hit a sensor and the system will automatically tighten. Then there are two buttons on the side to tighten and loosen. You can adjust it until it’s perfect.”

That was how Nike senior innovator Tiffany Beers explained it.

The technology has been in the works since 2013, and it’s based on what went into the Nike MAG — a replica of Marty McFly’s self-lacing sneakers in “Back to the Future” that Nike made last year.

Nike said the HyperAdapt makes use of a “more technical, sport version” of the automatic tying mechanism.

The HyperAdapt 1.0 will be available in three colors to Nike+ members this holiday season. The company said interested buyers can create an account online and sign up for updates about the shoe.

The Nike+ app will be revamped in June and will give users access to “coveted products and events,” the company said in a press release.

Shoe designer Tinker Hatfield said the HyperAdapt shoe aims to give athletes the ability to quickly make small adjustments to how tight or loose their shoes fit.

“That’s an important step because feet undergo an incredible amount of stress during competition,” he said in a statement.

Nike did not have pricing information available about the HyperAdapt 1.0.