Ok let this put an end to all the guesswork, these things are authentic Teva Mush. They have been redesigned. I did my own investigating, visited a retail store that sells national brand shoes and also anyone can see just by going to the Teva website, this is the new design of the Mush. I can see why a lot of people are unhappy with the redesign. I find them to run just a tiny bit shorter in the footbed than my older models. They are also just a tiny bit less smushy, but still comfy and I know they will wear in. Neither of these are deal breakers for me. The one thing I did notice that may be a dealbreaker for some people is that the thong part that goes between your toes is set further back than it used to, making the space where your toes lay longer. So if you have short toes, the new design may not work for you because you'll have a whole bunch of empty space up at the front. If you have long toes, like me, then these will be great for you. See my photos. I have included shots of the new tag which is now made of nylon material and not rubber anymore, the heel stamp which does not say "mush" anymore just says teva, and sole all of which are different than previous mush design. I also included a comparison between my old Mushes and the new ones showing the thong that sits back further, it's just a little but makes a difference.