Features: - In nature, a King Tide requires the perfect alignment of Earth and moon to create once-in-a-lifetime views and opportunities for watermen. Like their namesake, the King Tide 6 is designed to give you the ultimate advantage on the water. ? ? ?- Made for watermen who demand performance in every sport, the King Tide 6 features a medium wrap with removable side shields for optimal viewing on and off water. Shark-inspired venting achieves a near impossible zero-fog effect. Top of the line sweat management and drains keep your view dry and unobstructed. Non-skid hooding means they stay in place on any surface wet or dry. ? ? ?- All this has made King Tide 6 the crowning achievement of Costa’s 40 years on the water, utilizing the research and innovations from every frame that came before it. ? ? ?- Rule the water. - Model name: King Tide 6 - Frame color: Black Pearl - Lens color: Blue Mirror (Best for bright, full-sun situations on the open water and offshore. Gray Base | 10% light transmission) - Lens material: Polarized Glass (580G) (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) 580G: 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. - Frame fit: Wide (A large lens front designed to fit those with a wide head.) - Size: XL (Frame Width: 137 mm | Bridge Width: 17 mm | Lens Width: 58 mm | Lens Height: 46.9 mm | Temple Arm Length: 135 mm) - Nose Bridge: Universal Fit (This option accommodates most face shapes.) - Lens curve: Base 6 (Medium Coverage: Frames with medium-coverage and wrap that value style but still perform.) - 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.