Some are invisible. Because no matter what material it is, the quality of imitation may be very good, and some are even more real than the real one. It's called one-on-one imitation. Some people can tell. In order to reduce the cost, first of all, the material may not be as good as the genuine one. The second is the logo, washing label and commodity label on the clothing. The quality and workmanship of this label can also be seen. Then there are local workmanship details, clothing style details, material colors and so on. It can be seen. But it doesn't take a day or two to have such a vision.