I first ordered these sandals in white and loved them so much that I ordered them in khaki as well. They fit my feet well and are nearly as comfortable as going barefoot. The true test? I wore them to Disneyworld and Universal in Orlando, walking all over the parks, and got nary a blister or even a hot spot. In spite of the loose-seeming fit, they stayed securely on my feet at all times, even on the Harry Potter ride at Universal, where the removal of prosthetic limbs is recommended! (Your mileage may vary) They were a god-send when we got soaked on water rides and during the daily rain shower.
My feet are of normal width, and these are, like many Crocs styles, wider and looser than many other shoes, but once you get used to that feeling, it's hard to go back to "normal" shoes. I found myself wearing only Crocs (of one style or another) this whole summer, even to work.