How to tell the authenticity of Nike?

1, starting from the left hook tip and ending at the right part of the letter "u" of "UK", connects a straight line, and the extension line of the straight line just passes through the decimal point of the number "7.5" below "UK" and coincides with the central axis of the third digit of the article number.

2. If the size below "UK" has no decimal point and is a single digit, the extension line passes through the central axis of the digit.

3. The factory code is at the upper right of the double horizontal line, and letters and numbers correspond to each other. For example, "27.5" corresponds to "cm".

4. There are two kinds of bar code thick lines, and the third thick line will not appear on the genuine product.

5. The number column corresponding to 5.Upc barcode is still 14, and the first two digits are 0. After removing the first two digits, the remaining 12 digits should correspond to the UPC serial number on the shoe box.