I'm always a 10 in Clarks, but what on earth? I tried walking around in these, and my feet shot forward so my toes hung over the front edge, while my heel wasn't sitting as far back as it should because of the shaping of the footbed and positioning of the heel strap.  I see a couple of other reviews talk about this problem.

That's it for me buying shoes on line, free returns or not...shoes are just too tricky.