On the tongue in the original pairs from Nike There is the brand's logo. On the inside of the tongue on the tag should be product information, including size and country of manufacture. There is also a 9-digit serial number, which should correspond to the code on the box.

All authentic Nike shoes have a tag sewn into them with their size, barcode and model number on it. You will recognize it most easily by the barcode.

Nike Air Yeezy Samples, $1.8 Million In the spring of 2021, Sotheby's registered a sale at auction of a one-of-a-kind pair of Nike Air Yeezy prototypes, which Kanye West debuted onstage at the Grammys in 2008. The sneakers were the first-ever pair sold for more than a million dollars.