Introducing the Porsche Design Men's Sunglasses P8478-C-651. The power of a timeless idea translated into an exclusive shape. The iconic Porsche Design P'8478 sunglasses are the world's first sunglasses with a lens changing mechanism: the drop-shaped lenses can be replaced in an instant with spare lenses, thanks to a quick closure, and adjusted according to different lighting conditions. Made with extremely lightweight titanium and polycarbonate lenses with a durable coating, these new Porsche Design exclusive sunglasses impress not only with their innovative design but also with maximum functionality. Includes spare brown filters. Size: 66/10/135.