An article on CNBC, by Ari Levy, titled "Birkenstock quits Amazon in US after counterfeit surge" was published on Wednesday, July 20, 2016. The article explains that as of January, 1, 2017, Birkenstock will no longer be supplying any of its products to Amazon. This is in response to the increase of counterfeit Birkenstock merchandise being sold on the Amazon marketplace. Please read the article!
I wrote a blog in May 2016 about "Spotting Fake Birkenstocks." Please make certain you only purchase Birkenstocks through an authorized vendor to ensure your shoes are authentic.