The Chill-Its 6705CT Cooling Headband features advance PVA (polyvinyl alcohol) cooling technology and a secure hook & loop closure for comfortable relief in extreme heat. Lightweight and low-profile, this bandana is perfect for wear around the neck, on the head or under hard hats. A hook & loop closure in the back makes for an adjustable, snug fit on a variety of head sizes. Heat-related illness continuously ranks among the top causes of worksite accidents and fatalities. Evapor