I needed a pair of shoes that I could wear in the chicken pen, then hose off the chicken poo afterwards.  I own another pair of crocs that have a warm lining - and I just love those.  I normally like to try on shoes before I buy them, but figured they would fit the same as my other pair. They are just slightly larger than my other pair (to be fair, the lining in my other pair may be the difference).  These are very comfortable, and I find myself wearing them for walks and to the store, as well as their original intended purpose.  I agree that the cushion insole feels a bit slippery, but I find I can still walk in them just fine.  For those who are having trouble with odor - try an alcohol-based herbal deodorant spray (like Burt's Bees) - the alcohol should kill the bacteria that's causing the odor, and the herbal formula should freshen up the residual smell.  I haven't had need of this yet, just an idea.