I purchased these (ON SALE for half the retail price) to wear around the house.  They are VERY COMFORTABLE after I pushed the strap forward.  When I had the strap down, they felt too small and uncomfortable.  It felt like they were forcing my toes into the shoe.  After I pushed the strap forward, they were fine.  They do seem to run small.  I'm at a half-size, so I ordered UP, but even those seemed small.  Unfortunately, if I went up to the next whole size, they would be WAY too big.  Anyway, lifting the strap seems to have alleviated that problem.  They are also WIDE for my foot ... but when I wear them with SOCKS, it is not an issue.  These are the BEST LOOKING crocs I've seen/tried.  I think it is because they don't have the holes on top.  Anyway, I am very happy with this purchase ... especially since I was able to get them for under $16! :)