The RB4179 Liteforce RB4179-62-601-71 does what it is supposed to do. Manufacturerd by a quality brand in RayBan, means the RB4179 Liteforce RB4179-62-601-71 has been manufactured to last. Like all RayBan sunglasses you will receive a manufacturer's warranty, and will be able to send back your RayBan sunglasses in the event you are not entirely happy with your order.