Defeat the heat. The Mission Enduracool Cooling Towel is athlete engineered and made from proprietary performance fabric that instantly cools when soaked with water, wrung out and is snapped in the air to activate its cooling properties. The thermoregulating technology works by absorbing moisture and perspiration into the fabric where the unique radiator-like fiber construction circulates water molecules and regulates the rate of evaporation to create a prolonged cooling effect.