An enhanced version of one of Costa’s most trusted and well-loved frames, the Blackfin PRO builds off the original look, polarized lens and fit with six new angler-approved additions to keep you on the water longer. Along with a vented and fully-adjustable nose pad for a custom fit, sweat channels and eyewire drains will help keep your vision clear, while side shields, hooding, new stickier Hydrolite® and metal keeper slots keep your frames and your focus locked in. Features: Premium Polarized 580 Lenses: - Filtering reflective glare is essential for anyone on the water or outdoors. We sell only polarized sunglasses. 100% UV Protection: - Your Costas absorb 100% of UV light, providing you the best in light management and protection. Adjustable Nose Pads: - Fully-adjustable, nonslip nose pads were designed to further customize your fit and help reduce fogging. Scratch Resistant and Durable: - The C-Wall coating provides extra scratch-resistance and a barrier that repels water, oil and sweat for easy cleaning. Specifications: - Lens material: Polarized Glass (580G) - Frame fit: Regular - Nosepad adjustable: Yes - Lens curve: Base 8 Decentered Technology: Blue Mirror: - Best for bright, full-sun situations on the open water and offshore. - Gray Base - 10% light transmission Optimal usage: - Boating and fishing in deep water - Open reflective water - Harsh sun Costa 580® lenses: - Costa 580® lenses were designed by in-house light spectrum experts to enhance colors because standard sunglass lenses fell short. The lens´ multipatented technology manages light by: - Absorbing Harmful High-Energy Blue Light (HEV) - Enhancing Reds, Greens, and Blues - Filtering Out Harsh Yellow 580® lightwave glass: Superior clarity & Scratch-resistance: - Glass Provides The Best Clarity In Material - Encapsulated Mirrors (Between Layers Of Glass) Are Scratch-Proof - 20% Thinner And 22% Lighter Than Average Polarized Glass