Give your favorite Costa Isabela sunglasses a fresh look or a needed repair with these replacement lenses from Revant Optics! They're made with top-quality optical-grade polycarbonate that's 2.5 times clearer than cheaper lens materials. Every lens is precision-cut right here in the USA to guarantee a perfect fit for your Isabela frames – they'll lock in tight and secure. These lenses are injection-molded and tapered to the correct optical curvature, which means less eye strain and a super comfortable view. They come with a warm tint and 11% VLT, filtering out 89% of visible light for bright-day comfort. Plus, they have 100% UV protection to shield your eyes from harmful rays. The lenses are coated with anti-scratch and water-repellent finishes to keep them clean and clear. These are non-polarized, which is actually great if you need to easily read LCD screens on your phone, dashboard, or other devices. Revant tests every lens shape at their Portland, Oregon headquarters to ensure quality and fit. It's a cool way to customize your shades, reduce waste, and keep your Costa sunnies feeling like new for years – whether you're driving, fishing, hiking, or just enjoying a sunny day.