Costa Del Mar Zane Polarized Sunglasses, Black, Blue Mirror W580 by Costa Del Mar. $179.24. They take their name from the Zane Grey reef, one of the most prolific fisheries in the world. And they're ready to go as soon as you are with co-molded hydrolyte temples that hold tighter the more you sweat. Sleek styling in a hardcore frame, that's what you get with Zane.