Nike's phone-controlled self-lacing trainers

Nike's phone-controlled self-lacing trainers

It is the latest iteration of the futuristic footwear, first referred to in the film Back to the Future Part II, and made reality by Nike in 2016.

The latest version, called Nike Adapt, will cost $350 and will not require a physical button to activate the laces.

The launch event was hosted on live-streaming platform Twitch.

"We picked basketball as the first sport for Nike Adapt intentionally because of the demands that athletes put on their shoes," said Eric Avar, Nike's creative director of innovation.