Porsche Design Aviator Unisex Matte Black Dark Green & Spare Brown P8478 Sunglasses feature an innovative interchangeable lens mechanism, allowing for seamless adaptation to changing light conditions. Crafted from high-quality titanium, the P8478 sunglasses offer a perfect blend of strength and lightweight comfort. The teardrop-shaped lenses provide excellent UV protection and are available in a variety of tints to suit your personal style.