To use your Katana Sunglasses, simply open the arms and place them on your face. Make sure the nose pads rest comfortably on your nose and the arms sit well on your ears. When you're not wearing them, avoid leaving them in direct sunlight for long periods as it can damage the frames and lenses. For cleaning, use a soft micro - fiber cloth to gently wipe the lenses. Don't use abrasive materials or harsh chemicals as they can scratch the lenses or damage the frames. Store them in a protective case to prevent scratches and other damages.
