Costa Broadbill Matte Black Frame 580G Polarized SunglassesProduct Description. One of the hardest fighting gamefish, the broadbill swordfish, is the bounty of offshore anglers around the world. With a sculpted large wrap and nonslip vented nosepads, the Broadbill is as evolved and mighty as its namesake. These large sport frames are keeper ready with integrated temple tip icons designed to rock the boat or the docks. Feature Model name: Broadbill Frame colour: Matte Black Lens colour: Blue Mirror Lens