Serengeti Men's Masten Polarized Sunglasses (64-16-123mm, 2 Colors)

Lens Technology: Mineral Polarized Photochromic Spectral Control] The Purest Photochromic Polarized sun lenses See the world in a new light with The Purest polarizing photochromic sun lenses. These high-quality lenses adapt to all lighting conditions, providing clear and comfortable vision at all times.
Lens VLT : 18% to 12% Photochromic lens perfectly adapting to only let the necessary light reach your eyes Experience ultimate visual adaptability with Serengeti's photochromic lenses. See with clarity and comfort no matter the lighting conditions.
Frame Material: Metal Strong and long lasting material for a light yet solid frame Combining lightness and strength, our frame is designed to last thanks to sturdy and durable materials.
Hinge: Flex Hinges. Perfect hinge to adapt on various face size Our glasses feature the perfect hinge design to fit different face sizes with ease. Enjoy a comfortable and customized fit every time.