The Nike self-lacing sneaker from 'Back to the Future II' is finally available - but there's a huge catch

The Nike Mag, first featured as a vision of the future in 1989's "Back to the Future II," will finally become a reality this month.

Nike has partnered with the The Michael J. Fox Foundation to release 89 versions of the famous sneaker, to be raffled off via it's Nike+ app. Each entry costs $10, and will be a direct donation to the foundation, which will recieve 100% of the proceeds.

The shoes will look exactly like the ones seen on the big screen and, unlike previous versions of the sneaker, will feature Nike's Adaptive Fit self-lacing technology.

"Though it initially shared only a few seconds of screen time with Michael, the idea behind the Nike Mag unlocked something much bigger at Nike," Mark Parker, Chairman, President, and CEO of Nike said in a statement.

Entries for the raffle open on October 4, and will end October 11. Winners will find out by October 17.

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