What to wear when traveling to Northeast China in winter?

Well, if you are from the south and travel to the northeast in winter, you have to wear thick clothes, because the temperature in the south is high, and the temperature in the north is above MINUS 2 degrees, so you have to wear thick down jacket and thick cotton shoes, and it is best to wear down pants below. Because it is easy for you to travel and walk, you should wear this down jacket, hat and collar to prevent frostbite.