【Converse appraisal tutorial】 The first pair of shoes I saw was the cushioning pad on the back of the insole. At first, I thought it was just a defect of 8E workmanship, but when I saw the size mark, I understood. The origin of this pair of shoes is 9A, which is Vietnam, but the cushion is gray black, which is obviously wrong！ Then look at the 1910 batch, 19 and 10 are separated. It's a fake！ The knowledge of this pair of shoes is that each factory has its own characteristics. As long as you understand these characteristics, you can easily distinguish them