Thermal clothing is a type of clothing that is designed to keep you warm in cold weather. It is typically made from a fabric that is moisture-wicking and breathable, which helps to keep you dry and comfortable. Thermal clothing is often referred to as “base layer” clothing because it is the innermost layer of clothing that you wear. It is usually body-hugging for additional warmth and insulation. The key features of thermal clothing are:

• Material: Thermal clothing is made from high-quality materials that provide warmth by retaining the heat of the body while removing any moisture because of perspiration. The fabric feels soft on the skin and breathable, which prevents the body from being suffocated.

• Types: Thermal clothing comes in various types, including long underwear, leggings, t-shirts with short or long sleeves, rash vests, and one-piece suits.

• Function: Thermal clothing works by trapping the natural heat produced by your body to keep you warm in the cold outdoors. It adds an additional layer of smart material to a user’s clothing, which helps to ensure the user does not become damp and even colder.

• Fitting: Closely fitted thermal clothes help to retain warm air on the body surface, hence helps in retaining body warmth. Loosely fitted thermal clothing allows warm air to pass through due to the pumping action of body movement, hence feels cool.

Thermal clothing is important for people who participate in outdoor activities, such as hiking, skiing, mountaineering, and winter backpacking. It is also commonly worn by people under their clothes in cold countries. The availability of thermal clothing is widespread, and it comes in various styles and materials.