First, from the details of the size column format of Nike shoes, the United States, Britain and euro in the size column of Nike shoes are all uppercase letters, while the cm at the end is lowercase letters.

Secondly, from the details of the barcode in Nike shoes logo, there will only be two kinds of barcodes in the format of Nike shoes logo, one thick and one thin, and there will be no third thick. In addition, UPC-* * under the bar code is 14 digits. Remember, if the number 8 appears in the UPC number, you should observe it yourself and find that the number 8 is wide at the top and narrow at the bottom, while if the number 8 appears in the size column, it is narrow at the top and wide at the bottom.

Thirdly, from the details of the format of the hook in Nike shoes logo, the logo of Nike shoes is generally a sharp hook, which is vertically aligned with the right side of the U-shape in Britain, and the following numbers are aligned up and down at three points and one line. If the number below UK has a decimal point, the third point is changed to a decimal point, which is still a three-point line. These are things that need to be observed very carefully.