2. Wearing a sweater is "soft and warm". Traditional warm clothes are mostly all kinds of wool products. Many people think that sweater products are soft, warm and suitable for sports. However, wool products have two disadvantages, one is heavy weight, and the other is easy to get wet, which is the most disturbing thing in winter activities.
3. The more layers you wear, the better. Wearing more layers of clothes in winter can really keep you warm. You can take off a few more pieces when you exercise a lot, and you can put them on when you exercise a little. However, it is not the best for actual sports, because no matter what kind of sports, its scope of activities is far greater than daily work and life, so the requirements for the expansion and contraction of clothing are also higher. Unless the multi-layer clothes are very elastic, it is inconvenient to move.