Opt for this performance-optimised and technology-led Half Jacket 2.0 sunglasses from Oakley. Designed with ease-to-swap lenses, when they're mounted, you'll have impact protection that meets uncompromising standards. Optimized with Unobtanium® earsocks to grip better when you sweat and a lightweight O Matter® frame for comfort and durability. The pair features: The XL edition offers enhanced lens coverage and specialized lens curvature for protection against sun, wind and impact Unobtanium® earsocks and nosepads keep glasses in place, increasing grip despite perspiration Interchangeable Lenses let you change lenses in seconds to optimize vision in any sport environment O-Matter™ stress-resistant frame material is both lightweight and durable for all-day comfort and protection PRIZM™ Prizm™ is a revolution in lens optics built on decades of color science research. Prizm™ lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility.