There are two types of jerseys, one is the fan version and the other is the official version! The official version is hard to buy, and general stores sell the fan version! I don’t know how to distinguish the fan version, but the official game version is easier to distinguish! Just take some water and try it! You will find that if you pour water on the outside of a real jersey, it will not penetrate into the inside, but if you pour water from the inside, the water will quickly seep out from the inside, and the inside will be the same as dry!