Personally, for me I ordered a size 8.5 (normallky I am an 8 to 8.5) and I genuinely believe that the sizes are misleading. The boots are far too narrow, not wide enough and very tight and very, very difficult to put on as they are way too narrow. I actually got the impression that Adidas have used the wrong dimensions or used perhaps child / female measurements and not focused for these shoes for men. A pity as I would have really enjoyed the chance to use these shoes.