Combat Heat Stress & Fatigue with an Intense Cooling Experience! Radians Arctic Skull™ Head Shades 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 Skull Head Shade is designed to keep you cool during hot outdoor activities, such as construction work, tough workouts, or any strenuous outdoor or indoor activity. Features Patent pending stretch-fit design allows for better blood circulation and comfort. and Reusable, Jobsite Proven. treated to help build-up and unwanted smells. Heat stress ty management. Lasts up to 5 hours, depending on humidity levels. Available in 4 colors. One size fits all.