I bought these boots thinking they were a size 11ee. They are, in my opinion, a generous 10 to a 10.5 U.S. They are at least a double "e" or as much as a 4e. Unfortunately for me,  they are approximately 1/4 inch to 3/8 inch too short.   I really need a size 11 wide at least.  The width works fine for me, but my toes are just a bit scrunched.  The build quality is exceptional. They've only been worn a few times. I did add some nicer laces because I find most laces don't provide enough length. Also, I did dress them with some boot cream, thinking that maybe it would allow for some stretching. In the end,  I decided to sell them. So, to summarize,  I think these boots are a 10 to10.5 wide U.S. You can see them next to my Origin 11ee (true to size)  boots. Note: The Origin boots are not included with this sale and are used for comparison only. If you like a wide shoe and are looking for a10 to a 10.5 boot size U.S., then I think you'll really like these. The original retail was in the $600.00 range. They are in excellent, virtually new condition and should provide many miles of service. Thank you for looking.