These shoes are very comfortable, keep my feet warm, without socks, without being sweaty.  I have a narrow foot with a very narrow heel and worried about them not fitting.  So far, they provide so much comfort and do not slip up too much in the heel.  Although they look a little odd and somewhat manly, their comfort overrides the less than cute look.  I am planning to get another pair of Sanuk shoes ... maybe two more pairs!