Textile researchers said there is no single best fabric for managing extreme heat [1].
Clothing choices directly impact how the human body regulates temperature, which can influence overall health and comfort during intense heatwaves [1, 2].
While many people search for a specific material to stay cool, experts said that the answer is more complex than selecting one fiber [1, 3]. Factors such as the weight of the garment and the method of construction are equally important to heat management [1, 2].
Airflow is a primary consideration for those facing high temperatures. Clothing that allows air to circulate near the skin helps the body cool itself more efficiently [1, 3]. The fit of the garment plays a significant role in this process; loose-fitting clothes generally provide better ventilation than tight ones [1, 2].
Color also affects how much heat a person absorbs from the sun [1, 3]. In addition to color and fit, moisture management is a critical factor. The ability of a fabric to wick sweat away from the skin, or allow it to evaporate quickly, determines how well the body can maintain its core temperature [1, 2].
Researchers said that focusing solely on the fabric type ignores the systemic way clothing interacts with the environment [3]. A lightweight fabric that is too tight may be less effective than a heavier fabric that allows for significant airflow [1, 2].
“There is no single best fabric for managing extreme heat.”
This guidance shifts the focus from consumer marketing of 'cooling fabrics' toward a holistic approach to dressing for climate extremes. By prioritizing ventilation and moisture evaporation over specific brand-name materials, individuals can better mitigate the risks of heat-related illness during increasingly frequent heatwaves.
