I have plantar fasciitis and develop heel pain if running around the house without shoes, or walking for long periods of time (even with supportive shoe inserts).  After reading all the great reviews about FitFlops, I decided to give them a try.  My clogs arrived yesterday afternoon and I promptly tore open the box and put them on.  I haven't taken them off since!  I would have worn them to bed, but my husband wouldn't let me, LOL.  I was on my feet a lot yesterday and experienced no heel pain.  I normally wear 8.5/9 shoe and ordered the clogs in a size 9.  My heel is right at the back of the shoe...not too long or too short.  However, the fit is snug so I'm not sure there will be enough "wiggle" room for wearking socks unless the clogs stretch a little with continued wear. I have now ordered the mukluk boots, house slippers, and several pairs of sandals.  I can't wait for them to arrive :)