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.

Conclusion. What drives the retail markup for the Air Max shoes up is the demand by consumers. Thanks to the influence of technology, comfort, design, style, and hype, many sneakerheads cop Air Max sneakers, and thus, due to demand and supply chain, the sneakers are more expensive.

If you haven't worn the shoes out completely, you should be able to find inside each shoe a tag with a upc barcode as well as a number. That number is the identifying number for the model.

A serial code normally placed on a smaller label amongst the wash tags is the first point of call. The first four characters of the 6-12 character Nike serial code designates the year and season. Our example above uses an old serial code which shows just the letter F for 'Fall'.