If the label on this nightgown did not state that is is rayon I would swear that it is silk. It has a very silky and luxurious feel to it. It has an empire waist and three buttons above it that are part of the decoration and do not unbutton. The label reads Laros Rayon 34. The flat measurements are as follows: Armpit to armpit 34", Under bust 31", Waist 33", Hips up to 37", Length from front down 50" and sweep 78". There is one area on the left shoulder seam where the rayon has come away from the seam. Other than that it is in great condition.