With a hybrid style design, MCR Safety HL1 Safety Glasses look good and provide durable protection. These use a gasket-like seal and TPR rubber around the lens similar to a goggle. This helps prevent small particles, dust, debris, and even wind from entering. There is also an extended brow guard and side panels surrounding 80% of the lens. MCR Safety HL1 safety glasses also have a hybrid temple and nose pad designed with soft TPR (thermal plastic rubber). There are several colors to choose from, each meeting ANSI Z87.1 safety standards. The durable lenses are also treated with a Duramass scratch-resistant coating with anti-fog to help you see clearly in a variety of work environments.