The emergence of the Air Jordan 4, for the first time clear that AirJordan series will be interoperable with the Flight series, learn from each other, but also for the first time put forward the concept of defensive basketball shoes. In these days when the Force basketball shoes dominated the market, the nascent Flight series was weak, Flight symbolizing the flight, and the Flight series were all those who worked on the boards overboard, those who had excellent bounces were called Flight , They are often able to bring the most exciting performances, is the most popular figure on the basketball court, and Jordan is the representative of this player, so the Air Jordan4 launched in 1989 and the same year launched Air Flight 89 became the first to use Flight Logo of the two pairs of shoes, the appearance of these two pairs of shoes also indicates the birth of Flight series.