As recognizable as the sandy shelves between islands in the Bahamas that Giant Bluefin run through each spring, Cost´s Tuna Alley frame now comes with an updated style and PRO Series upgrades. This legacy frame’s updated vent system is backed up by six fish-spotting features to help you do it like the pros: Sweat management channels and eyewire drains, improved Hydrolite® rubber, adjustable nose pads, top hooding and side shields, and metal keeper slots. Fish on. 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. Scratch Resistant and Durable: - The C-Wall coating provides extra scratch-resistance and a barrier that repels water, oil and sweat for easy cleaning. Adjustable Nose Pads: - Fully-adjustable, nonslip nose pads were designed to further customize your fit and help reduce fogging. Specifications: - Lens material: Polarized Glass (580G) - Nosepad adjustable: Yes - Lens curve: Base 8 Decentered In the box: - Tuna Alley PRO - Costa Case - Cleaning Cloth Technology: Green Mirror: - Enhanced vision and contrast for fishing inshore and on flats. - Copper Base - 10% light transmission Optimal usage: - Sight fishing in full sun - High contrast 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: - C-Wall® Molecular Bond - Glass Layer - Encapuslated Mirror - Polarized Film 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