How many layers of clothes do people wear in antarctica?

In Antarctica people usually wear five to seven layers of clothing. The innermost layer is a wicking layer, made of a synthetic fabric that draws moisture away from the skin. The next layer is an insulating layer, which can be made of wool or synthetic materials. The third layer is a wind-resistant layer, which is often made of a lightweight, breathable material. The fourth layer is a waterproof layer, which can be made of Gore-Tex or another waterproof material. The fifth layer is another insulating layer, which can be made of down feathers or synthetic materials. The sixth layer is an outer shell, which is made of a water-resistant and wind-resistant material. The seventh layer, which is optional, is a pair of over-boots that are worn over the regular boots to provide extra warmth and protection.