3M AO Safety/3M Tekk 13253 Mabyim Adjustable Temple Safety Glasses, Black Frame, Amber Lens Dual injected, cushioned brow bar for comfort and protection Patented, dual aspheric lens for prescription quality, distortion free vision Universal nose bridge pivots to comfortably fit most nasal profiles Made in USA Meets ANSI Z87.1 and CSA Z94.3 safety standards