I bought this for postpartum wear, and to help tuck away this post baby belly, and it's been awesome! When I opened it I thought there was no way it would fit even if I'd gotten 3 sizes up, but I started at the bottom, held my breath a little, and on it went! Once on its breathable and comfortable and provides great compression and back support. I'm 5'4, 170 lbs right now and the medium is awesome! Will be reordering the small in the next week or so!!