Native Eyewear Mesa Polarized Sunglasses - Matte Black/Bronze - Across the globe, Mesas stand distinctly above their surroundings, and you will too with the new large, flat-brow style. Perfect for the drive to the trailhead or trekking through the valley, the Mesa bio-based resin frame will make you feel as good as you look. Features Premium Polarized Lenses - Native lenses protect against UV rays, defending your vision against long-term sun exposure. Bio-based Frames - The Bio-based plant resin is a high-performance material which is both extremely lightweight, yet durable enough to resist temperature extremes. Hypoallergenic Cushinol - Nonslip grip to keep your sunglasses in place while you are getting after it. Easy to Clean - Resists water, dust, dirt, oil and fingerprints while preserving the appearance of the lens against wear and tear.