The measurements have been taken on the outside of the flat garment and are approximate; please allow for minor variations. All measurements are direction-specific and may change slightly during use and after the first wash. Shrinkage in some cotton materials can be about 5% after washing.
How do you find your size? Take a similar garment that you already own (and that fits you well), like in this size chart. Lay it flat and measure the marked points in the same way as shown in this size chart image of the garment. Then choose your correct size based on these measurements.