I went with the advice here in the reviews and went a size down. If it were a regular shoe it would be fine,  Unfortunately the leather forms an edge and digs into the top of my foot when I walk. The boot itself is fine and all  due respect to Caterpillar, I will get a bigger size and update this review.  Try only going a half size down.  Update: Got my normal size and it's working out ok. I had to buy a 3rd party insole to make them comfortable, but overall these boots are pretty good. They take polish really well too.