Introducing Oakley Sylas, 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 Prizm Lens Technology. HAT COMPATIBLE: Hat compatible frame and temple design with an increased extended periphery FIT: Three-point fit is designed for comfort and to hold your eyewear in precise optical alignment LIGHTWEIGHT: Lightweight O Matter frame material provides durability and all-day comfort