The size is measured by mutual.Please allow for a 0.4"~0.8"devations in measurement . The size is listed in the dimensions of the clothes, not in the wearers' body measurements. Size information(inch) M Bust: 43.3 Tops Length 30.7 Sleeve Length: 23.8 Shoulder to shoulder 18.3 L Bust: 44.9 Tops Length 31.5 Sleeve Length: 24.4 Shoulder to shoulder 18.7 XL Bust: 46.5 Tops Length 32.3 Sleeve Length: 25.0 Shoulder to shoulder 19.2 2XL Bust: 48.0 Tops Length 33.1 Sleeve Length: 25.6 Shoulder to shoulder 19.7 3XL Bust: 49.6 Tops Length 33.9 Sleeve Length: 26.2 Shoulder to shoulder 20.2