See and be seen in OX8191 Enigma Mass, a bold style designed to grab attention through structural artistry and dramatic edge. With a nod to Oakley's heritage, the shape of each temple was inspired by our signature sunglass trigger stem design. This full-rim frame is made from lightweight O Matter and lightweight C-5 metal temples that taper from thick to thin.​ This pair are available with Oakley Authentic Prescription lenses that come laser etched with the ellipse logo on the left wearing lens for proof of Oakley authenticity and quality. Oakley frames sold by authorized sellers, like Amazon, are eligible for all manufacturer warranties and guarantees. Click on the Oakley link above the product title to shop the entire sunglass and eyeglass assortment.