Nike shoe designer Tinker Hatfield sent Fox a letter today that stated, “As the first, most celebrated wearer” of the Nike Mag shoes, “we wanted you to be the first to receive a living pair,” according to a tweet from the actor.

— Nike (@Nike) October 21, 2015 Nike said today in a statement that it “reinvented the conventional lacing system, integrating it into an inimitable design that became an enduring beacon of popular culture.” “We started creating something for fiction and we turned it into fact, inventing a new technology that will benefit all athletes,” Nike president and CEO Mark Parker said in a statement today. The company said the 2015 Nike Mag is a limited edition release and will only be available via auction, with all proceeds going to the Michael J. Fox Foundation for Parkinson’s Research. Additional details will be released in the spring, Nike said.

— Michael J. Fox (@realmikefox) October 21, 2015 Earlier this year, Nike filed a patent for a “power lace.” And in 2009, Nike filed a patent for what it called an “Automatic Lacing System.” Earlier today, a spokesman for Nike would only say that a pair of the self-lacing Nike Mag shoes worn by Marty McFly in the 1989 film “Back to the Future II” is in New York City Here is the original Marty McFly giving a try to Nike’s Back To The Future shoes