With the European sizing, its hard to know what size matches what we are familiar with. I have eight pairs of Bernie Mevs and have, after too big or too tight, my perfect size. I have 8 1/2 wide feet so 40 is perfect. A 39 would fit 8 1/2 m,  40 would fit a 9m.  I find the Bernie Mev shoes perfectly comfortably and very stylish!