Regularly clean the lenses and frame using a soft, lint-free cloth to remove dust, dirt, and smudges. Avoid abrasive materials and paper towels that could scratch the lenses or damage the frame. Refrain from using harsh chemicals, alcohol-based cleaners, or ammonia-based products, as they can strip coatings and cause discoloration. When not wearing the sunglasses, store them in a protective case to prevent scratches and accidental damage.