The OO9188 Flak 2.0 XL OO9188-50 does what it is supposed to do. Manufacturerd by a quality brand in Oakley, means the OO9188 Flak 2.0 XL OO9188-50 has been manufactured to last. Like all Oakley sunglasses you will receive a manufacturer's warranty, and will be able to send back your Oakley sunglasses in the event you are not entirely happy with your order.