Runs large from the torso area I’m pretty petit and short but I have a nice size butt, so the dress fit fine from the waist down but it seems like made for taller torso women. I also order Small and had the same problem Order it if you are an average height woman or if you are willing to alter it The dress is so beautiful in person and I decided to keep it and had to alter it. I received so many compliments at the event!