I usually wear US size 9 men's pants. Size 8 of these shoes fits my foot better but is too tight on top of my foot. I returned them and left at 9. They're very comfortable, although I'll confess I don't wear them much - from an hour to 90 minutes a day, that's it. They still look great after a year in the office with a few small signs of wear in the usual places. I'm sure even that would be better if I took better care of my skin. The sole is also in good condition, does not crack. Although expensive, they seem to be worth the money!