The metal frames are lightweight and durable, ensuring years of use. These sunglasses are perfect for anyone who wants to protect their eyes and look stylish at the same time.The metal frames are adjustable, ensuring a comfortable and secure fit.Not to mention that thee colour booster filter provides a more vivid and true-to-life experience of your surroundings and the polarized lenses make it easier to see in bright sunlight, reducing eye strain and fatigue