How often is it appropriate to wear long johns?

Ten degrees.

1. Choose autumn trousers with moderate elasticity, close-fitting but not tight, and high wearing comfort. When the temperature is below ten degrees, wearing a single pair of trousers is not enough to keep you warm, so add another pair of autumn trousers inside the pants. pants to keep out the cold.

2. For women during menstruation and pregnancy, the elderly, patients with arthritis, and people with yang deficiency constitution, the material of long johns is suitable to be pure cotton and other plant fibers, and it is best to wear it on the abdomen, knees, etc. Thickly treated long johns will have a better thermal insulation effect in 10-degree weather.