Ideally, these measurements will be taken directly from the intended wearer, since bodies are idiosyncratic and these measurements may vary independently of one another, e.g., the bust measurement does not determine the waist or hip measurements, just as the height does not determine the arm length or shoulder width. Alternatively, the body measurements may be estimated from clothing that fits the wearer well. As a last resort, standard measurements such as EN 13402 or US standard clothing sizes may be used.