I love this top. i got a medium in black on sale. i am 5'8'' and 135lbs. the medium fits great. the medium is slightly loose on me through the tummy, which is nice - in my experience, it is not too constraining, contrary to other reviews. however, i think it depends on your body shape; i am a coke-bottle. this will be a wardrobe staple for day to day and going out; note, it is too low-cut for work wear. very happy with my purchase.