? 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. As recognizable as the sandy shelves between islands in the Bahamas that Giant Bluefin run through each spring, Costa'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. Model name: Tuna Alley PRO Collection: PRO Series Item no: 6S9105 910506 60-16 Frame color: Matte Black Lens color: Sunrise Silver Mirror Lens material: Polarized Glass (580G) Frame fit: Regular Size: L Nosepad adjustable: Yes Lens curve: Base 8 Decentered L 1. Frame Width: 136 mm 2. Bridge Width: 16 mm 3. Lens Width: 60.3 mm 4. Lens Height: 42.3 mm 5. Temple Arm Length: 123 mm Regular Fitting A large lens front designed to fit those with an average-sized head. 8 Base Curve Decentered - Max Coverage Frames with maximum-coverage and wrap that help reduce light leak. Regular Forgot Your Ruler? Use this handy guide to gauge the fit you're looking for. All the Way? You might be looking for a small or medium frame. Middle Pegs? You might be looking for a medium or large frame. Last Two Pegs? You might be looking for an x-large frame. Sunrise Silver Mirror* Extended wear lens. The perfect tool for dusk and dawn performance. 25% light transmission *These lenses are not suitable for driving. Optimal usage Activities during sunrise/sunset Heightened contrast Low light/overcast conditions 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 Polarized Lenses 580 lightwave glass C-Wall Molecular Bond Glass Layer Encapuslated Mirror Polarized Film Glass Layer C-Wall Molecular Bond 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 U.S. PATENT NO. 6.334.680 U.S. PATENT NO. 6.604.824 Tuna Alley PRO Costa Case Cleaning Cloth