Costa Blackfin Pro Polarized Sunglasses Swing Equipped with our patented C-Mate

Equipped with our patented C-Mate technology

angled head design

You obtain perfect results through use of the adjustable height cooking grill and the variable temperature control draft door assembly

No-tangle storage

Boat & fishing gear maintenance in one

Costa Blackfin Pro Polarized Sunglasses Swing Equipped with our patented C-MateAn enhanced version of one of Costas most trusted and well loved frames, the Blackfin PRO builds off the original look, polarized lens and fit with six new angler approved additions to keep you on the water longer. Along with a vented and fully adjustable nose pad for a custom fit, sweat channels and eyewire drains will help keep your vision clear, while side shields, hooding, new stickier Hydrolite and metal keeper slots keep your frames and your