NBA said in the ban: "according to the rules of the alliance, players should not wear shoes that can make themselves illegal in the competition in a way that violates the spirit of competition."

And this kind of shoe that can increase bounce is a new brand named APL. The manufacturer is a twin brother named Goldstone. After they learned that their shoes were banned by NBA, they were not upset. Instead, they played advertisements with "NBA banned sports shoes". The brothers said that many NBA players, even 30% of the rookie, were very interested in these shoes.

Most players have their own sponsors, but can not disclose their names, and the price of this kind of sneakers is as high as $300 a pair, more than the majority of the current sports shoes brand.

The surface of the shoes is made of carbon fiber, and the sole has a device that absorbs strength. It can be released before the player jumps, which helps to jump, but how big it helps, without definite quantitative indicators.