New Raincoat Pro is the ultimate hydrophobic coating for your plastic optics. Raincoat Pro is very quick to apply and dries instantly, even in humid conditions. It leaves a transparent coating on your plastic optics that sheds water like a brand new Teflon pan. Kit comes with a 30 ml. (one fluid ounce) of spray and a buffing cloth. One bottle will coat up to 100 pairs of glasses or 50 helmet visors. You will see better and your optics will stay cleaner for weeks.