I actually thought it was a sweater, but when I received it, it wasn't. It is quite a terrific surprise. It is silky and it looks great. I am 5'2" and a size 6, but have broad shoulders and big boobs. A medium looked great. If you are looking for 3/4 sleeves, go with the small. I like the long sleeves though. Great over sleeveless tops, when office is cold. Dresses up any outfit. I am buying a few other colors. Great price for this.See full review