Nike's high price is mainly due to its reputation as a global brand and its high-tech design and manufacturing processes, as well as high-quality materials. But not all consumers are willing to pay high prices. Some consumers may prefer to buy lower-priced competing brands or choose not to buy such products.

Every pair of authentic Nike shoes comes with an SKU number that is identical to the SKU number on their box. If the numbers are missing or do not match, they are likely fakes. Check the tongue label. Often, fake Nike manufacturers put outdated sizing labels on the inside of the shoe.

Most Nike items will follow this rule if it contains the small serial code label. Look underneath the wash tag to find this reference.

Locate the tag inside your shoe. 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. Look for it inside: The tongue.