OccuNomix MiraCool Blue Denim Headband is made of cotton with cooling crystal for durability. Headband is longernarrower than bandana, with plenty of fabric to ensure a secure tie and when worn cooling sensations are passed to important pulse points and offers highly effective evaporative cooling. It stays hydrated for several days. Reusable headband works without freezing. It increases alertness and productivity by keeping workers cool. Headband is ideal for factory, construction and laundry room workers, welders, painters, chefs or anyone working or playing in a warm environment – indoors or outdoors.