You want to race? The new Pivlock V2 from Smith Optics will take you from the start line to the podium in a flash. The PivLock interchangeable lens system features a proprietary, patent-pending temple and lens interface that truly provides an unobstructed field of view. Engineered to minimize frame weight while maintaining a secure fit, both the temples and nosepiece remove easily, making the task of changing lenses easier than ever. Lightweight, durable, and fully transparent Evolve frame material is over 53% bio-based. Engineered to be the most impact resistant lens material in the world, Carbonic TLT lenses are optically corrected to maximize visual clarity and object definition. Ideal for sport and casual use. Seven-base lens curvature creates performance-enhancing coverage. Hydroleophobic lens coating is an advanced lens barrier that's engineered to repel contaminants and moisture. Three-position adjustable nose pads offers up a custom and comfortable fit. Hydrophilic megol nose and temple pads. Boasts a medium fit for medium coverage. Measurements: ; Temple Length: 131 mm ; Frame Width: 143 mm ; Weight: 1.04 oz ; Lens Height: 49 mm ; Lens Width: 81 mm ; Bridge: 11 mm