Chris Fischer and his crew are living, breathing, modern-day adventurers and you can bet he's always got a pair of Costas around his neck. Fisch frames feature no-slip Hydrolite lining and our signature three-hole venting system on the front to keep things cool even when things heat up. Available in frames and lenses as shown below.COSTA MIRROR 580 TECHNOLOGY - High-tech. High-Performance. The ultimate lens. Yellow light is the enemy. It's hard for the eye to process and changes how you see the world. Not with a pair of 580s on. These patent-packed lenses raise the red, blue and green areas to amazing levels, while eliminating much of the yellow light. The result is purer vision, deeper colors and sharper contrast. Costa 580 lenses are available in gray, copper, blue and green mirrors, making them the perfect choice for any conditions.Costa's proprietary 580P TECHNOLOGY in impact resistant, lightweight, optical quality PC. Ophthalmic quality injection molded PC lens, Virtually unbreakable, Clarity & Color enhancement of the 580 Glass lens, Lightweight, Enhanced coatings to reduce scratching and enhance lens performance, 580 performance at a lower retail price!