The tags have the size and product information on the inside of the shoe (behind the tongue). Real Adidas shoes will have tags with different serial numbers for the left and right shoe, but a fake product will have the same serial number.

Like their rivals Nike, adidas do a good job of providing an easily accessible code across all their shirts. The code (also known as an International Article Number), found on a small tag usually on the inside of the collar, is 6 digits long consisting of 2 letters and 4 numbers.

If the materials look cheap, there is a good chance that the shoes are fakes. Genuine Adidas shoes are made with precision and attention to detail, undergoing rigorous quality checks before appearing on the market. Counterfeit sneakers, on the other hand, often have unfinished seams or glue stains.