I am a size 9 and followed the Amazon suggestion for the size 40.  This is a wonderfully constructed shoe that is true to size in the dark brown.  Reasonable amount of padding in the sole.  Looks just unusual enough to suit my taste, yet normal enough to go with the clothes I have.  Heels not too high to be uncomfortable and the texture on the leather gives it a nice look.  I was afraid the brown would be too plain because of the photo Amazon had, but I was wrong.  Conservative with an edge that is me, my wardrobe, and this shoe.  Love, love, love the shoe.