The third boot in the APL concept basketball shoe collection. APL, whose full name is athletic propulsion labs, was founded by American entrepreneurs Adam Goldstone and Ryan Goldstone. APL launched its first basketball shoe in 2010. APL concept 1 was designed by famous designer Tuan Lee, whose representative was the anda1 Taiji that Carter won the slam dunk contest in 2000. The ad slogan of APL concept 1 at that time was like this: “this pair of shoes can increase the vertical jump height of 10cm instantly, and it is forbidden to be worn by NBA players.”. At that time, the world was shocked because it became the only forbidden pair of shoes for NBA players. It is the core technology of APL concept “eight spring load n ‘launch” device that makes APL concept a no wear shoe.