Before I ordered I read all the bad reviews about the sizes so I was skeptical, but when I recieved my crocs, they fit perfectly! I wear a size 15 mens and the 14-15 size was perfect. I noticed mine were made in Mexico and not China like some others, so Im not sure if that has anything to do with it. As far as comfort, there is nothing more comfortable than crocs! I don't even think walking on air would be as comfortable!