1. Side label of shoe box: The style, size, origin and standard size of shoes are all on the side label, which is also very important for consumers.

2. Shoe label: There are only two kinds of real label barcodes: thick line and thin line; Through the comparison of vertical marks, it can be found that the imitation mark font is fuzzy, while the genuine logo is clearly distinguished at all times without ambiguity.

3. Insole glue: The glue on genuine aj insoles is thick and has a strong glue smell, while the glue on Putian insoles is thin and small.

4. Flying wing logo: The flying wing logo of genuine aj shoes feels full, and the flying wing logo of Putian AJ shoes feels flat.

5. Shoe box steel seal: The steel seal on genuine AJ shoe box has a strong three-dimensional concave-convex feeling, while the steel seal on Putian AJ shoe box is flat.

In short, for consumers, the QR code on A J shoes needs comprehensive judgment in many aspects, not just an interface to confirm.