Lens Specifications: Interchangeable lens system, Spherical 8.75 base, Patented XYZ Optics, Pure Plutonite, Optional Iridium coatings. Frame Specifications: O Matter frame, Open edge design, Metal Icon accents, Patented Unobtainium earsocks and nosepads, Engineered to fit medium faces. Available in: Jet Black/Amber Black Iridium, Jet Black/Black Iridium, Jet Black/Gold Iridium