100 % refined heavy silk, Thickness 30m/m,Heavy silk is twice the amount of silk used in ordinary silk fabrics. It is made by special craftsmanship. The fabric is thin and thick, the feel is soft and smooth, and the feeling is strong and the quality is elegant.In addition to the characteristics of ordinary silk fabrics, it also has the characteristics of not shrinking. The quality of heavy silk fabrics is indeed higher than that of ordinary silk fabrics. In particular, heavy silk fabrics are extremely difficult to hang. It is incomparable to other silk fabrics.