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 frame and temple design with an increased extended periphery Durability and all-day comfort of lightweight O Matter™ frame material Prizm lenses enhance color, contrast and detail for optimized experience Plutonite® lens material offers top UV protection Filters 100% of all UVA, UVB up to 400nm and some harmful blue light Three-Point Fit holds lenses in precise optical alignment Oakley Sylas Prizm Sunglasses