Cheongsam is not split or cheongsam?

Classical flag dresses mostly adopt straight lines, loose body, split sides, and the waistline of the chest is close to the size ratio of the dress. The appearance features of cheongsam generally require all or part of the following features: open or semi-open form of right lapel, collar button, side slit, flat cutting of single piece of material and sleeves, etc. Opening is only one of the many features of cheongsam, not the only one, nor is it necessary.