About Size: The size of our tulle maternity robes as following, S(Bust31.5"-33.5",Shoulder15.3",Length53.1",Train20");M(Bust33.5"-35.4",Shoulder16.5",Length55.1",Train20");L(Bust35.4"-37.4",Shoulder17.3",Length57.1",Train20");XL(Bust37.4"-40.2",Shoulde18.5",Length59.1"Train20");2XL(Bust40.2"-43.3"Shoulde19.3",Length 61.1"Train 20");3XL(Bust43.3"-46.5",Shoulde19.7",Length63.0",Train20");4XL(Bust46.5"-49.6",Shoulde20.9",Length 64.9",Train 20")