Ultra-thin design paired with a classic rectangular silhouette makes Extender the perfect frame for everyday wear. Extender features subtle stem architecture that adds depth to its design, while ultra-lightweight C-5 metal material helps to provide all-day comfort. Oakley products sold by authorized sellers, like Amazon.com, are eligible for all manufacturer warranties and guarantees. Visit the Oakley shop by clicking on the brand link above to shop the entire Oakley assortment.