Genuine jk has no elastic band, and most of them are knockoffs. Jk uniforms were introduced to China from Japan, which are the daily uniforms worn by Japanese female high school students. But now many jk uniforms on the market are difficult to distinguish the authenticity. We can judge clothes by observing their patterns. Authentic tops don't have a waist, and the tops are shorter. In addition to observing the top, you can also judge by the folds of the skirt. Authentic skirts have sharp folds and dense folds.