Gloves, hat, neck warmer, warm socks, and goggles are vital to cover all exposed skin.
Remind travelers that clothing helps prevent heat and cold illness as well as bites and stings from insects and other arthropods. Cold weather clothing should be made of polyester, nylon, Merino wool, or, in some circumstances, down. Layering typically consists of a base layer, insulating layers of heavy-pile polyester or nylon-encased polyester (down suffices if traveling to a location that is dry and cold, but does not function well when it gets wet), and a windproof, waterproof outer layer of tightly woven nylon with a durable water-repellent coating. Gloves, hat, neck warmer, warm socks, and goggles are vital to cover all exposed skin.