2.8mm high-impact lenses Lens is scratch-resistant outside and fog-resistant inside 100% UVA/UVB protection ESS Profile Series replacement lenses are compatible with ESS Profile NVG, Profile TurboFan, and FirePro goggles. These 2.8mm, high-impact lenses feature ESS&'; advanced ClearZone FlowCoat lens coatings to maximize scratch resistance on the outside of the lens and fog resistance on the inside. All ESS lenses offer 100% UVA/UVB protection. ESS Modular technology allows all lenses to be quickly and inexpensively interchanged.