I have shoe size 37.5. Since this is not available for this shoe, I ordered size 38. With a contribution I can wear the shoes well, it is, however, still a little further than I am used of 38 gr + deposit (for the star deduction). But he still does not slip and, thanks to the rubber sole and a small heel is quite comfortable, I'm satisfied. In addition, the shoe is of course really pretty! Overall a very elegant, expensive shoes, I would buy again.