Features:- 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 Prizm™ Lens Technology.- HAT COMPATIBLE: hat compatible frame and temple design with an increased extended periphery.- Available with Prizm™ lenses that are designed to enhance color, contrast and detail to make the most of any activity.- 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.- Impact Protection: Oakley lenses are designed and tested under extreme high mass and high velocity circumstances to ensure uncompromising protection across a wide range of demanding conditions.