I agree with the other reviewer that it ran small. I bought this in the store and I tried on a 6 which is my usual shoe size and they were loose, so I bought the 5.5. I feel that the 5.5 is a bit too tight for me but I hope it'll stretch soon. Not the most comfortable shoe ever, in fact they require some break-into. I agree with the other commenter that it's really very narrow, and the felt strip at the back of my shoe peels off when I try putting them on (they're stuck with glue). Would recommend other better shoes.