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.Features:- Hat Compatible: hat compatible frame and temple design with an increased extended periphery- See More Details: 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- Prescription: Available with Oakley Authentic Prescription lenses for athletes of all levels with RX needsImpact Protection Lenses:- Oakley lenses designed and tested under extreme high mass and high velocity circumstances to ensure uncompromising protection across a wide range of demanding conditions.Prizm:- Light Transmission: 17%- Light Conditions: Bright Light- Contrast: Increased- Information notice: 3Technology:Impact Protection:- Oakley lenses designed and tested under extreme high mass and high velocity circumstances to ensure uncompromising protection across a wide range of demanding conditions.Prizm™:- Oakley´s exclusive lens technology designed to enhance color and contrast.Take Care Of Your Lenses:- To help maintain the High Definition Optics® (HDO®) of Oakley lenses, your new eyewear comes with a specially-woven electrostatic Microclear™ bag for cleaning and storage. Using it will preserve the superior optical quality of Oakley´s pure Plutonite® lenses. Hand wash and air-dry the Microclear™ bag regularly.