JBC Cooling towels are specifically designed to cool you down by providing moisture and cooling sensations through evaporation. They are made with unique materials that, when dampened with water and wrung out, can provide hours of cooling relief. The science behind this is simple: when water evaporates, it absorbs heat energy from the surface it's evaporating from. As a result, it cools that surface. In this case, cooling towels use this principle to cool down your body.