Why do traditional cloth shoes in China have to be cut into loops on the vamp?

Men wear round shoes and women wear square shoes, which is the embodiment of the common concept of "a round place";

The patchwork white cloth soles and black cloth shoes are also the standard combination of yin and yang.

The design of shoes stems from the non-simple aesthetic concept. The scene of mother earth presented by insoles is in the same strain as the life containers such as "cornucopia" and "buckle bowl" in paper-cutting, and has the same metaphorical meaning.