My work requires that I wear dark, closed-toed shoes, and I have to stand in one place for long stretches of time.  I, also, have to be able to walk without fear of my shoes rubbing or slipping off my foot.  I have tried many different kinds of shoes, and I have gotten some good brands like Josef Seibel, Ecco, Hush Puppies...but all leave me with sore feet and an aching back.  But these Crocs Saffrons are absolutely wonderful!  They don't squeeze my toes; they don't rub; they provide support; and are cushy so they absorb shock.  They run a size small, however.  I wear an 8 (39 European) in Crocs and in other shoes, but I needed a 9 in these.  The 9's fit perfectly and I love them.