Help keep yourself and others warm during the occupation. Here are the basics of how to best prepare and dress yourself.
Long underwear, tight-fitting apparel worn against the skin. Silk, polyester and poly blends that wick moisture off your skin. This is critical because after you’ve generated perspiration, you don’t want to suffer dramatic drops in body temp when you stop moving.
Generally everyday items like a sweat shirt, long sleave tshirt, etc. make up your mid layer. Wool and nylon often make good mid layers.
Insulated jacket even warmer or can act as the primary source of warmth inside a shell. Should be lightweight and low-bulk for active sports, and is commonly a pullover jacket, sweater or vest. Some great insulating materials include fleece, wool, goose down and synthetic fill.
In cold weather, you lose much of your heat through your head and neck. Your hat needs to insulate and breathe well, Synthetic and wool hats stay warm when wet.
A face mask,scarf, or balaclava provide good protection, the other key here is comfort.