I am a true size small and i ordered this dress and it was way big. it's meant to be a relaxed fit, but it sagged under the arm-holes because the bust was way too big. some folks are saying it ran small and they are essentially the same measurements as me, so it makes me think there is possibly some variation in each size. i got on here to reorder in a smaller size, but now am not sure what to do as i need a dress with in the next three days!