No frills, effective safety glasses. Made of a durable, lightweight, scratch-resistant polycarbonate, the one piece wraparound lens provides a wide field of vision and reliable protection. The Duramass® scratch-resistant coating minimizes the damage of desktop falls, laboratory mishaps and construction site wear and tear. Extra Large Over the Glass. Safety Glasses Style: Over-the-Glass; Frame Color: Black; Frame Material: Nylon; Lens Material: Polycarbonate.