Liquid Metallic Dark Silver Blouse M/L Women

There are no tags anywhere on this that I can find. I have no idea what brand this is, nor the exact blend of materials, country of origin, or size However, it's in excellent condition. I am only guessing that it is a Medium or Large. However, my partner was 6'1" and about 185 pounds. I did a Google photo search, and a very similar item, if not the same, comes up to a brand Norma Kamali and states it is a polyester blend. It feels very slinky and silky, the fabric does move through my fingers like liquid