Sting-Rays offer a fashionable look with their lightweight plastic frames. The design is contemporary and yet offers the wearer a panoramic view. Their 4 position adjustable temple make them a comfortable and economical choice. The hard coated polycarbonate lens offers 99-Percent UV protection, meaning they absorb more than 99-Percent of harmful ultraviolet radiation. The hard coating on the lenses helps them resist scratches in abrasive environment and help to extend the lens life. These safety glasses meet the requirements of ANSI Z87.1 for high impact.