Every once in a while, a revolutionary innovation comes along that really makes a difference in how you see things. Radians® new IQuity™ anti-fog coating is a break through technology that provides one of the most superior and long-lasting anti-fog coatings in the marketplace at a competitive price. It is both EN166K and N compliant. The water based coating lasts much longer because the anti-fog and anti-scratch properties are built into the lens for long term wear and durability. Radians® Obliterator™ IQ foam lined Safety Eyewear comes with a removable foam lining and adjustable head strap.