Chilly Band Cooling Headband. You wrap your head in winter to retain heat and now you can wrap it in the heat to stay cool. The new Chilly Band absorbs sweat like a traditional headband and provides cooling relief during strenuous activities thanks to its advanced material and no-drop ice chamber. Chilly Band Cooling Headband stays in place using stretchable covered elastic. Reusable, zip close storage and travel packaging makes Chilly Band easy to carry and keep moist right up till match time.