Which innovative technology, first introduced by Nike in 2017, features a carbon fiber plate embedded in foam that has been shown to improve running economy by approximately 4%?

Nike, Adidas, Under Armour and other sports retail giants constantly push the boundaries of innovation to enhance athletic performance. One breakthrough technology has particularly revolutionized the running shoe market in recent years, sparking debates about performance advantages and even facing potential competition bans. Test your knowledge about cutting-edge sports retail innovation!

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Nike ZoomX Vaporfly with carbon-fiber plate technology
Adidas Boost with responsive energy-return capsules
Under Armour HOVR with embedded smart tracking chips
New Balance FuelCell with nitrogen-infused foam compression system