Tang Dynasty reached its economic prosperity and became an open society.Thus, the underwear was heavily influenced. During that time, women began donning“hezi”, a piece of cloth that swathed the breasts and back which exposes the neck,shoulders and upper half of their breasts.“hezi”made the lace redundant but buttons essential which were fastened in the front. Usually,heavy and elastic material is used to make a sexy visual impact of the breasts.