Adidas Introduced The Adidas 1

In 2005, Adidas introduced the Adidas 1, the first ever production shoe to use a microprocessor. Dubbed by the company "The World's First Intelligent Shoe", it features a microprocessor capable of performing 5 million calculations per second that automatically adjusts the shoe's level of cushioning to suit its environment. The shoe requires a small, user-replaceable battery that lasts for approximately 100 hours of running.