These goggles are designed with a sleek futuristic design to make the wearer feel great and energized. The Stealth is very versatile because of its "toric" lens which fits under welding helmets, on hard hats, and with most respirators. It even has a polypropylene frame with soft elastomer seals that conforms to most facial contours. This design creates a very secure and comfortable fit! The lenses have a Uvextereme AF anti-fog coating to keep your vision clear all day long. The anti-fog system is backed by the indirect ventilation system which channels and directs airflow over the lens to further minimize fogging. This clear lens system is so great that even if you do break the lenses, you can easily replace them. Buy these great USA made, ANSI Z87+ and CSA Z94.3 standard approved goggles! Image shows Grame frame, Clear UVextreme Lens.