Extremely large size up to one and a half sizes smaller you need, you will hardly achieve it through online ordering. As many stores sell it, while they know it has a disproportionate size, they do not even have the courtesy to post a size chart for Renato Garini. They put a random size chart that they downloaded from the internet in general and that's it. It also has a wide width if you have a small foot. Garini only directly in the store. You wear both shoes, not just one, you walk for a couple of minutes in the store, and then you buy it!