Polyester,Mesh Chinese cheongsam: neckline and waistband design, full of oriental charm Sexy but Cute Cut: Open-chest and hot transparent mesh tulle, a wild and lovely you; Comfortable Fabric: Polyester, skin-friendly and comfortable; This sexy cheongsam suit includes: dress + panties..This is One size fits for height 5'1-5'8(155-170CM),Weight 95-140lbs(45-60KG) women. The Chinese cheongsam, a kind of dress which combined sexy and elegant, if you are already very familiar with normal nighties ,why not try a special set ? I am sure you will like it;