The wheel of time keeps on turning, and before we know it, it is the end of the year. The weather in early winter in December is sometimes cold, sometimes hot, and there is a big difference in temperature between morning, noon and night. For office workers and students who go to work early and come home late, they must pay special attention to dress appropriately so that they will not be exposed to the wind and cold, and will not be too hot in the middle of the day. For kindergarteners, parents usually decide what to wear. Long sleeves and a jacket? Thin or thick? Especially when the weather changes, many children will wear thick clothes.