I was definitely a Crocs skeptic until I had to work on my feet all day.  I placed the order, got my shoes.. They ran a little big (I'm usually 7-7.5) but not horrible.  I was very pleased with them, even though I no longer have the job, I still wear them frequently because they feel like air.  I literally do not feel any kind of pressure on my feet from these.  Highly recommended.