The Anon Amos Sunglasses combine a 70's style with new-wave materials & technology to give you a retro look with distortion-free vision & bomber construction. Starting with a tough acetate frame, Anon gave the Amos Sunglasses a stainless steel bridge reinforcement & hinges to ensure long-lasting durability. The optically correct Optyx Descentered lenses hold off scratches better than polycarbonate & weigh far less than glass.