Bifocal Safety Reading Glasses +1.00 Diopter Strength Clear Lens Color Anti-Fog Lens Coating Traditional Eyewear Frame Design Tortoise Shell Frame Color Polycarbonate Frame Material Polycarbonate Lens Material Eyewear Venting Non-Vented X-Ray Detectable No Standards ANSI Z87+ MIL - PRF - 31013 Eyewear Frame Style Half-Frame Eyewear Size M Series DM3