One of the most sought after sneakers ever also just become possibly the most expensive pair ever. A Hong Kong auction house has sold a pair of the new Back to the Future-inspired Nike Mag shoes for $104,000.

In addition to hyping the iconic shoe, the auction served to raise money for the Michael J. Fox Foundation (MJFF), an organization dedicated to supporting Parkinson's disease research.

Just set a new WORLD RECORD for the most expensive pair of sneakers ever at auction Worldwide!!! #nikemag @Nike ! Sold them for US$104k!!! — Dragon8 Auctions (@Dragon8Auctions) October 11, 2016

The name of the sneaker-obsessed buyer wasn't released, but the logistics of the auction were handled by Hong Kong-based Dragon 8 firm.

Currently, Nike is also working with the MJFF to give away a large number of the unique, self-lacing kicks to those who enter a $10 per entrant lottery. In all, Nike created 89 pairs of the special-edition sneakers.

The Hong Kong auction is just one of three, with the other two occurring in London later this month and in New York City at the MJFF benefit gala at the Waldorf Astoria on Nov. 12.

Anyone interested in entering the Nike Mag giveaway to support MJFF (and maybe win a pair of shoes from the future) can still enter the drawing, which ends Tuesday at 11:59 p.m. ET.

Bonus: Nike made just 89 pairs of these Back to the Future sneakers