580P C-Mate THE TUNA ALLEY READERS STORY Get the benefit of readers and sunglass all in one. Equipped with our patented C-Mate technology, these Costa Tuna Alley reader sunglasses are the perfect balance of performance and function, whether it's spotting a fish, tying a hook or reading a map. Without any visible line separating the bifocal area, these performance fishing men's Angler reader sunglasses make for a seamless day spent uncovering a new stretch of water, casting and getting one on the line. With three power ranges of +2.50, +2.00 and +1.50, we have the perfect pair for any taste.
