The Nike Air Mag: A real thing at last? (Nike via YouTube.)

Last year, the company patented the technology to make the Nike Air Mag sneakers Marty McFly wears in “Back to the Future II” a reality. These futuristic shoes boast power-laces.

“Nike Kicks” blogger Matt Halfhill said he was called by Nike at midnight Wednesday and flown to Los Angeles. There he found a box that contained a message from Dr. Emmett Brown (“If my calculations are correct, over the next 24 hours you are about to see some serious [bleep]!”) and metal shield glasses. There was also a goodie-bag of “Back to the Future” products.

To add to the hype, the company released a teaser video called, “McFly’s Closet,” showing rows and rows of the kicks.

Nike is holding a private reception this evening when, we hope, the shoes will be unveiled.

Get a glimpse at the shoes below.

Update: Michael J. Fox talked about the Mags on “Letterman.” Find out all the details here.