PIP 396-602-B Blue Polyvinyl Alcohol Outer Evaporative Safety Cooling Towel

Ideal for use in hot environments for protection from the stress of high temperatures.When activated simply in a small amount of water, the amazing fabric feels cooler than the ambient temperature and will remain cool for hours. You may cut the towel size and wrap around your head, neck, wrists or use under a ventilated cap. If it dries out just add water, give it a quick wring and it's ready to continue cooling.