I normally wear a size 8 boot, I went to a 6½ on this boot and it fits wonderfully. I did not heat mold them, and the first day I rode in them they felt like I had broken them in and were perfect. I put in the T-sides for ankle support, and I am amazed at the ankle support this gave me. They are not still and not soft, they are a perfect in between park riding boot! I have enjoyed them and put many, many hiking days in the backcountry with these as well. You cant go wrong with these, they are butter on your foot!