Named after the famed Indonesian surf break, Keramas wear’s its boldness, and distinctiveness on its sleeve. Featuring a sharp square lens shape with a light top-to-bot tom taper and subtle key-hole bridge, this handmade frame is made from our Bio-Acetate material and as a member of our Del Mar collection, is only available in 580 Glass. 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. Del Mar: - Sunglasses inspired by a life on the water, colors, patterns and textures that capture the spirit of the sea. Specifications: - Lens material: Polarized Glass (580G) - Lens curve: Base 6 In the box: - Keramas - Cork Case - Costa Soft Case Technology: Sunrise Silver Mirror: - Extended wear lens. The perfect tool for dusk and dawn performance. - 25% light transmission 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® 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