lothing can help control the temperature of the human body.

To offset high ambient temperature, clothing can enable sweat to evaporate (thus permitting cooling by evaporation). The billowing of fabric during movement can create air currents that increase evaporation and cooling. A layer of fabric then insulates slightly and can help keep skin temperatures to a cooler level.

To combat low ambient temperatures, a thick insulation is desirable to reduce conductive heat loss. Other things being equal, a thick sleeping bag is warmer than a thin one. At the same time, evacuating skin humidity remains important, several layers of materials with different properties may be used to achieve this goal while lowering heat losses so they match the body's internal heat production. Clothing heat loss occurs due to wind, radiation of heat into space, and conductive bridging. The latter is most apparent in footwear where insulation againstconductive heat loss to the ground is most important