2. At the same time, jk uniforms can be divided into four types according to the shape of the collar: Sapporo lapel, Kanto lapel, Kansai lapel and Nagoya lapel, and can be divided into various types according to the number and color of lapel lines on the collar. The color and number of lapel lines 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.