Radians Arctic Radwear® Cooling Towels are made with Advanced ARCTIC™ Technology that accelerates the evaporative cooling process. Just soak the towel in water for 2-3 minutes and then experience cooling relief for up to 5 hours. The Arctic Radwear® Cooling Towel is designed to keep you cool during hot outdoor activities, such as construction work, tough workouts, or any strenuous outdoor or indoor activity.