The Chill-Its by Ergodyne Evaporative Cooling Bandana is a reusable cooling bandana that provides up to 30 minutes of cooling relief. It is made of hyper-evaporative material that activates when wet to provide a cooling effect. To use, soak in water for 1-2 minutes then wring out excess. It will stay cool even during strenuous activity. The bandana is 12" x 26", lightweight, and machine washable. It provides UPF 50+ sun protection. This cooling bandana can provide relief from heat during outdoor activities and hot weather.