The Margo SetThis two piece set is designed to look fashionable while being comfortable. The model is wearing a small. How to measure the Margo Set: 1. The measurements on the size chart are done in centimeters (cm). 2. In order to measure the bust of the shirt make sure you measure at the fullest part of your bust. You need to place the tape under your arms and measure it across your body over the shoulder blades. 3. In order to measure your waist of the shirt