Perfect for an afternoon spent beachcombing or voyaging out on the water, Cost´s Ballast sunglasses are ready for whatever the day brings. Frameless and almost weightless, these Polarized Costa men´s sunglasses boast a durable TR90 nylon and weigh in at a lightweight 16 grams. Whatever watersport or waterside adventure a day on the water brings, Cost´s Ballast are always looking to uncover something new. Features: Fit: Narrow: - A small lens front for those who prefer to cover a smaller portion of the face. Nose Bridge: High Bridge Fit: - Offers a more secure and comfortable fit for those with a high nose bridge and lower cheekbones. A good choice if the bridge of your nose is above the level of your pupils. 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. Specifications: - Lens material: Polarized Polycarbonate (580P) - Frame fit: Narrow - Lens curve: Base 8 Decentered 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 Polycarbonate: Lightweight, Impact-Resistant: - Polycarbonate & are your lightest and most durable lens material options - C-WALL® is a molecular bond which is scratch-resistant