Corsets are sized by waist size. So please choose your corset according to your waistline. not your bust. If your waist measurment is between two size, please choose the smaller size. , Fri, 22 May 2020 14:24:04 +0300 Corsets are sized by waist size. So please choose your corset according to your waistline. not your bust. If your waist measurment is between two size, please choose the smaller size.