IQuity[TM] Anti-Fog Coating is a breakthrough technology that provides one of the most superior and long-lasting anti-fog coatings in the marketplace. 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. Environmentally friendly, non-toxic and non-flammable unlike highly toxic solvent-based coatings. Water washable up to 20 times more than hydrophobic anti-fog glasses. Lightweight comfortable frame. Dual mold rubber temples provides a comfortable fit. Adjustable rubber temples provides a comfortable fit. Adjustable rubber nosepiece provides a customized, no-slip fit. Polycarbonate lens provides impact resistance. Dielectric frame. Meets ANSI Z87.1 standards. Provides 99.9% UVA/UVB protection.