I tried this shoe on at the mall, but bought it from Amazon where it was cheaper. I always wear a medium size nine. I ordered a 40 which is equal to a 9.5-10 because that size fit perfectly at the mall. This shoes was very narrow and I couldn't wear it more than a couple hours. The stitching was also not very neat and high quality like the pair I had tried on at the mall, and that I am used to seeing on Dansko shoes. I had to send it back, so painful there would be no way it would even be something you could "break in".