Chalk-coated textiles cool in urban environments

As air temperatures stay elevated through fall months, people may still want clothes that cool them down while outside, especially if they live in cities that stay warmer than rural landscapes. Researchers who previously demonstrated a cooling fabric coating now report on additional tests of a treated polyester fabric. Fabric treated with the team's chalk-based coating kept the air underneath up to 6 degrees Fahrenheit cooler in warmer urban environments.

source https://www.sciencedaily.com/releases/2024/11/241108113305.htm