1. Logo, which is a basic common sense. If you can't pass this test, don't consider it. Generally, you can see it on the tongue, upper, heel and insole, especially pay attention to the word NB. The number and depth of N teeth are

2. There will be shoe models on the tongue, upper and insole, and some are

according to the design. That is, the shoe label is on the inside of the tongue

3. There are numbers and letters on the shoe label, some can see the NB logo, and some can see a two-dimensional code, which is the only logo of this pair of shoes, and each shoe is different < P > 4. The teeth in the NB logo B should be deeper, and the E font of the EU letter is different, as well as the location of MM, the font and letter spacing of the place of origin. The difference is very small, so don't look carefully.