I recently purchased this vest and unlike other reviews, i found it to be tts. with that being said, i am typically a medium in retailer tops or 8/10. i have broad shoulders (5'9, 145lbs). i purchased the medium and it fit perfect through the shoulders. it is meant to be flowy and gives some volume in a good way. if that's the look you are going for this is the top for you. had i gone down a size, i would not have been able to hook the top. i am going to be wearing this with blue jeans and white s