The Oakley SI M Frame® included in the array surpasses ANSI Z87.1 Industrial Standards for high-mass and high-velocity impact protection. The lenses are made of pure Plutonite®, a proprietary material that offers the highest level of optical clarity available in eyewear. You get razor-sharp clarity at all angles of view, which maximizes peripheral vision and protection against sun, wind and side impact.
• Shatterproof, scratch-resistant Plutonite® polycarbonate lenses can be interchanged
• Polar Ellipsoid™ lens shape eliminates distortion
• Hammerfang™ ear stems provide a 3-point fit to comfortably accommodate various head sizes
• Patented hydrophilic silicone earsocks and nose pieces become tacky when wet, so they won't slip when you perspire
• The eyewear and extra lenses fit into their own special case