Thermalunterwäsche

Thermalunterwäsche, also known as thermal underwear or long johns, refers to a layer of clothing worn next to the skin designed to provide insulation and retain body heat. It is typically made from materials that are good at trapping air, which acts as an insulator. Common materials include wool, particularly merino wool, synthetic fabrics like polyester and polypropylene, and sometimes cotton blends.

The primary function of thermalunterwäsche is to keep the wearer warm in cold conditions. It achieves this by creating a barrier between the body and the colder environment. The fabric's structure allows it to hold a layer of warm air close to the skin, reducing heat loss. Many thermal garments also incorporate moisture-wicking properties, meaning they can draw sweat away from the skin and transport it to the outer layers of clothing. This is crucial for comfort and preventing chilling, as dampness can lead to rapid heat loss.

Thermalunterwäsche comes in various weights and thicknesses, suitable for different levels of activity and temperatures. Lightweight options are often used for moderate activity or milder cold, while heavier weights are preferred for extreme cold or sedentary activities. It is commonly worn by outdoor enthusiasts, athletes, construction workers, and anyone spending time in low temperatures. The effectiveness of thermalunterwäsche can be enhanced when layered with other clothing, creating a system that traps multiple layers of insulating air.