I have worn many pairs of Birkenstock sandals and clogs.  These were the first that fit a little weird.  The front toe portion comes way too far down and completely covered my big toe and most of my second toe.  Very strange.  I fixed them myself by trimming the leather to at least show my toe nails.  They do look better now.  Other than that, they fit like the typical Birkenstocks, but with the thong portion.  Not crazy about them, they are just okay.  I think I will try the other thong that they make now...more normal looking.