Apple does not sell any products through Amazon. All Apple products listed on Amazon are through third parties.
Also, some Apple products are shipped and sold by Amazon, not third parties - https://www.amazon.com/gp/product/B00W5Q06VU/ref=s9_dcacsd_b...
I'm surprised Apple hasn't taken any action against them for this.
Apple is pretty aggressive about how it combats counterfeit products, so it's not unreasonable to think that they'd pressure Amazon into to eliminating counterfeit Apple products.