Bought as lingerie (5' 7", 125 lbs, B cup). The set only comes in one size (M). Had previously bought something similar on Amazon for half the price ($20). The material of this top is much softer and less spandex-like than my other one, and the fitted band at the bottom of the shirt makes it comfortable and flattering. The bottoms are stretchy but snug, and the leg holes are cut differently in the front and back like real underwear. The sewn-on name patch is a nice detail as well.My only concern is that the sleeves are much tighter than the picture shows, conforming to the arms rather than sitting loosely like on the model. If you have bigger arms, this item might not fit you.The seller was extremely fast and the item arrived weeks in advance despite being shipped internationally. Overall would recommend!