Hello, you can choose your own size in our model. We recommend that you make your choice by taking the upper body measurements given below as a reference. Best regards, The waist measurement range for size XS is: 60-65 cm, Chest measurement range: 76-83 cm. For size S, the waist measurement range is: 66-72 cm, Chest measurement range: 84-90 cm. For size M, the waist measurement range is: 73-79 cm, Chest measurement range is 90-97 cm. For size L, the waist measurement range is: 80-87 cm, Chest measurement range corresponds to 98-104 cm.