Oakley Sylas OO9448 944802. Frame color: Polished Rootbeer; Lens color: Prizm Bronze; Frame material: O_matter. Oakley Sylas is a classic frame with reliable features. Feel secure in this new style that goes above and beyond the standard with upgraded features for all-day wear, including a hat compatible design, lightweight frame and Prizmâ„¢ Lens Technology.