Soar to great visual heights in The Bird. This large, masculine frame conveys a bold appearance with its striking angles, whereas the SuperThin Glass lenses yield superior, breathtaking views. The slightly-wrapped sides and flexible, rubberized temples ensure a secure fit for long days under the sun. Lens Material: SuperThin Glass - Provides the absolute crispest optics available. 20% to 32% thinner and lighter than standard glass, it offers the best scratch and solvent resistance.