What to wear at 6 am and 20 noon?

Long-sleeved shirt, windproof coat, etc. 6 degrees in the morning and 20 degrees at noon, the temperature difference is large. It is recommended to wear in layers. Inner layer: wear a long-sleeved shirt or a long-sleeved T-shirt, and choose cotton or moisture-absorbing and sweat-wicking fabric to keep comfortable. Outer layer: according to personal preference and weather conditions, you can choose a lightweight windproof coat or jacket to cope with the cold in the morning.