After signing Jordan, Nike has been accused of lack of innovation by Reebok, the industry leader. At the same time, Reebok's PUMP series basketball shoes shine in the NBA. In order to cope with the responsibilities of competitors and survive in the sporting goods industry, Nike has developed an air cushion technology that is more innovative than a pump. After successfully launching the first air-cushion basketball shoes AIR FORCE 1 and AF 1, Nike fully realized the important publicity value of adopting celebrity endorsement products, signed Jordan, a third-year dropout from North Carolina, at a sky-high price of $ 250W, and improved the classic shoes AF 1 and DUNK to launch the signature shoe series of AIR JORDAN. 1 AJ LOGO on the first generation is a basketball with wings, and its shoe shape is still the classic style of Nike, with the big logo of Nike SWOOSH on the side. AJ shoes are not the first pair of signature shoes in history, but they are the first "series" of signature shoes.