When shopping for clothing, one of the most important considerations is finding the right size. Before looking at size medium, it is important to determine your size according to the manufacturer’s standards. Additionally, it is important to be aware of the different measurement systems used by different brands and countries. Generally, sizes in U.S. and Canadian sizes are based on the bust and waist measurements and in the U.K., sizes are based on chest measurement. In Europe, sizes are based on height and weight. Once you have determined your size according to the manufacturer's standards, size medium is the next step when looking for clothing.
In women’s clothing, size medium typically corresponds to a dress size of 8 - 10 and a bust size of 38 - 40 inches. For men’s clothing, size medium typically corresponds to a neck size of 15-15.5 inches and a chest size of 38-40 inches. Keep in mind that these numbers may vary slightly from manufacturer to manufacturer, so it is important to double-check the measurements before making a purchase.