1. Measure your natural waistline around the smallest part of your waist; and note down the number in centimetres or inches.
2. Then measure your bust as shown, and note the measurement in centimetres or inches. Make sure the tape measure is flat across your back.
3. Check where your measurements fall on the charts below, either in centimetres or in inches. That will be your size.
4. Or if you like, you can use your dress size for comparison to select your size using this chart in red.