The Chill-Its 6710CT Cooling Bandana is a tie-on cooling solution featuring advanced PVA (polyvinyl alcohol) cooling technology to provide relief in extreme heat. Lightweight and low-profile, this comfortable bandana is perfect for wear on its own or under hard hats. A tie closure in the back makes for an adjustable, snug fit on a variety of head sizes. For proper wear, tie the three fabric pieces securely in a knot. Heat-related illness continuously ranks among the top causes o