Jk uniforms can be divided into Sapporo lapels, Kanto lapels, Kansai lapels and Nagoya lapels according to the shape of the lapels, and can be divided into various types according to the number and color of lapels. The color and quantity of lapels are the criteria for distinguishing types, such as red three, black one and white one. The parent-child line is two internal lines, one wide and one thin; There are also deformed lapels, but they are all jk uniforms in essence.