I have tiny feet, a size 6 (I've been known to squeeze into a 5.5) but these shoes were entirely too narrow in the toe box (no matter the thickness of the sock) such that my toes were falling asleep in them. The back of the shoe is stiff such that I could anticipate getting a blister in the achilles region. I exchanged for a half size up and will update my review accordingly. They are beautiful, sturdy, and the hidden platform is lovely. The soles seemed slippery to me, though. So watch out!