Edge safety eyewear is tested to meet or exceed safety standards set by ANSI & OSHA as well as US Military eyewear ballistic impact resistance requirements. In addition Edge is the first safety glasses manufacturer to offer Blue Light Filter, Polarized lenses, G-15 lenses, anti-fog and Aqua Precision (NASA technology) lenses. Along with advanced technology they also offer a wide range of great styles of frames including XL styles for those with larger heads. Priced very economically at $5.95 - $24.95 (for polorized lenses) these are a great buy for safety glasses or just for use as traditional sun glasses. Specific lens colors are idea for driving glasses, golfing, skiing, motorcycles, hunting as well as many other outdoor activities.