We would recommend taking your bust and waist measurements and comparing these to our size chart. Our size chart also provides instructions on how to measure yourself. This should help you to select a size, but if you have any questions or require specific measurements, please send us an email at contact@lanuuk.com and we would be happy to help. Our swimwear is generally true to size but each style fits differently on different body types. The descriptions on the product pages will give more details of the fit of each particular style. Our fit and modesty guide also provides more information on each style and how they fit to the body.