The radiation glasses Nike Brazen Shadow feature high quality, distortion-free SF-6 Schott glass radiation-reducing lenses with 0.75mm Pb lead equivalency protection. The radiation safety glasses Nike Brazen Shadow have clear CE Certified Lens and weight 74 g. These radiation glasses Nike Brazen Shadow are prescription available. Made of high-quality plastic, it is a durable and lightweight rectangular, wrap around frame. These Nike lead glasses feature rubberized temple bars. These prescription Nike radiation glasses are available in matte dark obsidian, matte black/white, matte anthracite, matte dark gray/red, and matte dark gray/gray.