For a more up-to-date look with all the advantages of bult-in "reading style" bifocal magnification lenses, you need Sport-Specs Magnifying Safety Glasses. Lightweight, sporty-contoured frame features fog-free and scratch-resistant 100% polycarbonate lenses with integrated side shields. Silicone-tipped temples and nose bridge prevent slippage and ensure comfort. Gray tinted nylon bayonet frame offers outstanding durability and a flexible fit. ANSI certified. Choose from four long-range depth-of-field magnifications: 1.5X, 2.0X, 2.5X or 3.0X.