Gateway Safety 28MG15 Conqueror MAG Safety Glasses, 1.5 Diopter Magnification, Gray Lens, Black Frame Conqueror MAG bifocal protective eyewear helps to maximize small details while vanquishing impact hazards with the same commanding presence as the original A soft, rubber nosepiece and ergonomic, contoured temple tips for all-day wearability Adjustable length eyewear retainer with each pair Meets ANSI Z87.1+ and CSA Z94.3 standards This tinted lenses significantly reduce bright light to minimize eye strain and fatigue