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. , Sat, 23 Oct 2021 18:01:13 +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.