If you think the v-neckline is too low, you can wear a small high collar inside. Use a high-necked or semi-high-necked bottoming shirt for the inside. The temperament is softer and more warm. The skin-friendly bottoming shirt is the first choice. Combine it with the sweater. Doubled. Compared with sweaters worn on the outside, the inner base shirt must be thinner, so that it won’t look bloated when you fold it up. The v-neck sweater is very suitable for outer wear or underlaying. A coat is also very warm when going out on the street.