Vintage Chicago Bulls Basketball Shorts, People started wearing short shorts in basketball because it fit the fashion style of the 70s and 80s. The uniforms were tighter and shorts were small during those decades. NBA shorts got longer because Michael Jordan asked his manufacturer for longer shorts in order to be more comfortable on the court. After Michael Jordan started wearing longer and baggier shorts, the rest of the NBA started to adopt longer shorts and moved away from short shorts.
When experts talk about the NBA before and after Michael Jordan. It is obvious what a huge impact Jorden has had on the game and of course on the Chicago Bulls.