The "power laces" technology, self tightening shoelaces, first seen in the 1989 film Back To The Future Part II, has been created by Nike Inc. and integrated into the 2015 Nike Mag shoes.
Quoting from their website,
"This innovation advances what was coined the Nike Mag’s “power laces,” combining the archetype invention with digital technology. The result is an individually responsive system that senses the wearer’s motion to provide adaptive on-demand comfort and support. But this is just the first iteration.
Nike continues to test this technology across multiple sports, incorporating feedback into future game-changing footwear with unprecedented performance features that have the potential to impact athletes around the world.
The 2015 Nike Mag is a limited edition release. It will only be available via auction, with all proceeds going to the Michael J. Fox Foundation for Parkinson's Research. The specific details on the auctions will be posted to Nike News and via Twitter @Nike in spring 2016."
Now that the wearable technology has been fully developed into a working shoe, can we expect this technology to be commonplace in future shoe lineups of all makes and styles?