I normally wear a 11 but there are some that I can wear 10.5.  I did what everyone said and ordered a half size smaller than my normal (10.5).  Although the length is good these are really narrow.  I had to use a shoe stretcher for a week before even attempting these.  I can wear them for a few hours before my heel starts to blister.  They are really good looking though.  I'm giving 3 stars because I'm going to give them the benefit of the doubt that they will break in but out the box they were unwearable and very uncomfortable.