I wear a 9.5 and got these in a 41.  I absolutely love everything about this shoe!  Fit is perfect, comfortable and most of all there is enough give in the instep area.  I have a high instep and it is my constant battle to find shoes to fit comfortably without the added pressure in that area.  I believe I will be wearing these daily in comfort.  The craftsmanship and quality is excellent.  I would definitely purchase again, when on sale.