Oakley Switchlock (TM) . O Matter (R) lightweight & resistant frames . Unobtainium (R) nose pad and ear socks . Interchangeable nose pads . Removable strap . Three-Point fit . Interchangeable metal logo details. XYZ Optics. 8.75 Base lens curvature. 100% UVA, UVB and UVC protective Plutonite (R) lenses . Meets ANSI Z87.1 standards for high velocity impact and high mass impact. Includes two pairs of interchangeable: one for low light and one for bright sunlight. Includes Oakley soft case. Made in the USA