If you peruse some of the sneakerhead forums, you'll see a lot of complaints about counterfeit dealers on Amazon. Nike used to partner with Amazon so you were assured your Nike's were coming directly from Nike. Nike killed the deal in 2019 and so now you have no idea where those Nike's and other sneaker companies products are coming from:
And the Wall Street Journal reported this week that Nike was “disappointed the deal with Amazon didn’t eliminate counterfeits and give the brand more control over gray-market goods,” which are legitimate items that Amazon sellers buy from distributors or retailers, rather than from Nike itself.
The problem for Nike is, removing itself from the Amazon platform won’t fix that problem. In fact, it’s likely to get worse. Amazon will now look to acquire more “gray market” Nike products to fill in the inventory gaps Nike’s departure will leave behind.
https://www.vox.com/recode/2019/11/14/20965434/nike-amazon-p...
Now Chinese Nike knockoffs are showing up under dubious brands like "fashion" or "Vitike":
https://sneakerhistory.com/2019/11/14/8-unbelievably-fake-sn...