I ordered these from EBay, so I can’t verify if that they are authentic. The seller told me that she bought them from Shoe Carnival. I don’t own any verified Birkenstocks to compare these to, so can’t decide. I did notice that the edges of the shoe are a slightly uneven. That said, they are comfortable with nice arch support. I would keep them, but I ordered brown and I really don’t want the black color, although I have considered spray painting the straps brown, because as I said, the shoes are comfortable.