Oakleys' OO9448 Sylas is a classic frame with reliable features. A style that goes above and beyond the standard with upgraded features for all-day wear, including a hat compatible design, lightweight frame and Prizm Lens Technology. The lightweight O-Matter frame material provides durability and all-day comfort, while Three-Point Fit ensures a precise fit for optical alignment.​ Oakley sunglasses sold by authorized sellers, like Amazon, are eligible for all manufacturer warranties and guarantees. Click on the Oakley link above the product title to shop the entire Oakley sunglass and eyeglass assortment.