For those who bleed saltwater, Costa&';s Brine sunglasses are one of the most useful fishing tools in any tackle box. Hydrolite(TM) temples, co-injected, co-molding technology and our storied 580 lens technology, these Costa men&';s sunglasses deliver comfort and durability to anglers whose greatest love is bending a rod. Because to some, performance isn&';t just nice it&';s necessary. a Premium Polarized 580 Lenses* Filtering reflective glare is essential for anyone on the water or outdoors. We sell only polarized sunglasses. a 100% UV Protection Your Costas absorb 100% of UV light, providing you the best in light management and protection. a Scratch Resistant and Durable The C-Wall coating provides extra scratch-resistance and a barrier that repels water, oil and sweat for easy cleaning. a Costa 580A(R) lenses Costa 580A(R) 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: a Absorbing Harmful High-Energy Blue Light (HEV) a Enhancing Reds, Greens, and Blues a Filtering Out Harsh Yellow