These Don Brothers Airfly Sunglasses are easy to use. Just put them on your face like regular sunglasses. When you're not using them, keep them in a case to avoid scratches. Clean them with a soft cloth. Avoid exposing them to extreme heat or cold. Don't use harsh chemicals to clean them. Also, be careful not to drop them as they might break. And if you're in the USA, you get the benefit of free shipping!
