If you can't even pass this level, don't even think about it. Generally speaking, it appears in prominent positions such as tongue, upper, heel, insole, etc. Pay special attention to the word NB, as well as the number of teeth of N and its depth. In addition, the specific model of shoes will also be marked on the tongue, upper and insole, but it is not the only standard according to the design of shoes. There is also a very important place to distinguish between true and false, so the natural shoes are marked on the inside of the tongue, and the places that are more prone to problems are NB logo and size.
Finally, we need to pay attention to details. Even if there is no problem with the size of shoes, we still have to make a careful comparison: the teeth on NB mark B are deeper, the E font of EU letters is different, and the location of MM, as well as the font and letter spacing of the place of origin, although the difference is small, it is still difficult to see the flaw without looking carefully.