Meh.  I bought these shoes because I wanted a flat that was breathable, had a durable sole, and a little arch support.  I'm not really sure they hit the mark.  The sole is durable and has good traction, but the whole shoe is very stiff and rigid.  The other major flaw is that the shoes sort of curves in.  The sole that extends a bit over the toe pulls the shoe toe box upwards and makes the size that I always wear just a hair too small.  The backs curve in, too, causing blisters on my heels.  I don't think sizing up would have helped me.  I can't really speak to the breathability, since I have to wear them with socks in order to be somewhat comfortable.  Oh, and no discernible arch support.<br /><br />If your feet run between sizes, you may be able to order the larger size and enjoy these shoes.  Not so for me.