First, use a coat.
Thermal underwear can be worn directly as a bottoming shirt with a coat, which looks good and keeps warm. Whether it is down jacket or woolen coat, whether it is short or long, it is icing on the cake, beautiful and fashionable.
Second, with a low-necked shirt.
Thermal underwear is very close-fitting, so you can wear other beautiful clothes outside, such as a low-necked shirt, which can add some layering, and then put on a coat to be relaxed and comfortable.
Third, with a loose sweater
Loose sweaters may be a bit through flow if you wear them directly. At this time, it is just right to wear a thermal underwear inside, and then it is tall and thin with a pair of leggings, and it is still full of fashion with a coat.