I purchased these because I have a herniated disc and the Fitflops don't hurt my back.  It took a bit to figure out that the Gogh is leather, more expensive and seems better made than the Gogh II which is made of felt.  I bought the Gogh in black and brown.  My foot is wide in the front but I have a skinny foot with medium arches.  I usually wear a 6 in the regular Fitflops thong style.  The 6 in the gogh was a perfect fit, assuming you don't want to wear socks.  Fit just like the thong with my heel almost to the edge.  The bottom of the clog is the same rubber as the thong and the clog part is leather and fuzzy on the inside.  I did notice the color rubbed off on the tissue inside the shoebox, not sure if the color would transfer onto clothing.  They do look like house slippers, you have to like the Birkenstock toe look, boxy.  I think they look like slippers because of the suede.  They aren't high style but high comfort.  The brown fit great, just snug enough around the foot to keep my foot in when I walked.  The black was huge, not in terms of length but around the arch of the foot, I found myself walking out of the clog.  Now I'm concerned that if the brown stretches across the arch it will be like the black pair.  I wish they were more consistent in fit.  Also, it was a little strange hearing the slapping sound of a flip flop coming from my feet walking in clogs.  Not sure if I'll keep the brown.  But it is comfy.  I will definitely keep buying the thong style.