When the temperature is between 0 and 5 degrees, the temperature difference between indoor and outdoor is large. It is suggested that you can choose down jacket, down trousers, double-layer warm trousers, wool trousers, fur hats, scarves, cotton shoes and other cotton-padded clothes. The specific choice of thermal performance of clothing depends on the local outdoor temperature and the length of time spent outdoors. Because of the large temperature difference between indoor and outdoor, it is best to leave a certain transition time whether you go indoors or out. For example, if you want to go out after sweating, you'd better take a rest and dry your sweat before going out, otherwise the sudden change of temperature in your body is easy to catch a cold.