Using these sunglasses is easy. Just put them on like you would any other pair of sunglasses. They are great for outdoor activities such as driving, hiking, or just strolling around. When not in use, store them in a protective case to avoid scratches. Clean the lenses regularly with a microfiber cloth and a mild eyewear cleaner. Avoid using abrasive materials that could damage the anti - reflective coating. Also, don't expose them to extreme temperatures or chemicals as this may affect the frame and lenses.