The size page is detailed to avoid any misconceptions and has been praised to be accurate. We are EURO fitted. Our size is similar to fits from Italy or the UK. Because we sell in US/CANADA we make sure to educate on this topic. If you are a standard US t-shirt size MEDIUM and you want a relaxed fit, you may want to go to a size LARGE Rover Designs, for example. This method works for 90 percent of our customers. Secondly, you can properly measure yourself and compare to the size chart to best understand where you fit. It’s important to know that you will have some stretch room with real leather and that nobody will perfectly fit the measurements. If the measurements are well off, you either measured incorrectly or require custom sizing.