Radians rcs109 arctic radwear cooling headband, camo radians arctic radwear headbands are made with advanced arctic technology that accelerates the evaporative cooling process. Just soak the band in water for 2 3 minutes and then wear it for up to 5 hours of cooling relief. Our patent pending stretch-fit spandex design allows the band to move with your body, not against it, allowing for optimum blood circulation, keeping you cooler and providing a noticeably more comfortable fit than standard headbands . The arctic radwear headband is designed to keep you cool during hot outdoor activities, such as construction work, tough workouts, or any strenuous outdoor or indoor activity.