So I love this product you don't want to order your size ladies remember that order a size down theres a sizing chart for a reason so check it out first of your a medium youll want a small. the first week will kinda suck because its new and its tight (as it should be) itll get easier and soon youll be sizing down to the next row as it slims your waist. Im 51 and weight 145lbs I normally wear a small/medium in shirts/clothing and a size 5 in jeans I ordered a small and it fits great! Im already moving down rows. Its pretty awesome I don't have the back fat issue or bulging its comfortable and fits nicely under my clothing and has improved my posture!