Costa Del Mar Isabela 580P Polarized Sunglasses for Ladies blend big lenses with a modern, sophisticated look, providing optically correct vision while drawing attention to your sensible style. These women's sunglasses are designed with Grilamid TR-90 nylon frame material which is remarkably tough and unbelievably resistant to UV damage and breakdown. Costa Isabela sunglasses feature the clearest lenses on the planet. True Costa 580 Technology blocks yellow light, boosts red and green light, and increases polarizing efficiency. The C-Wall proprietary coating powerfully repels water, oil, dust, and scratches to keep up with your fast-paced lifestyle. Their incredible impact resistance has been rigorously proven with ANSI Z80.3 and ANSI Z87.1 high-impact/velocity testing. Featuring lightweight polycarbonate lenses, these powerful sunglasses provide 100% polarization and UV protection. Provides 100% polarization and UV protection, minimizing glare and visual fatigue True Costa 580 Technology blocks yellow light while boosting red and green light Polycarbonate lenses are lightweight and impact resistant C-Wall coating repels water, oil, dust, and scratches TR-90 nylon frames with nonslip nose pads