What exactly does Hanfu mezzanine mean? . Hope to advise. .

Sandwich means that the clothes are double-layered, and cotton is added to keep them warm. For example, the Hanfu style has a robe with crotch (split) on both sides. The difference between a robe and a shirt is that the robe has a sandwich, that is, a double layer Hanfu winter clothes and summer clothes, winter clothes generally have a sandwich, wadding and cotton, which is very warm. There are tulle and short shirts in summer clothes, both of which are single-layered.