COSTA DEL MAR BLACKFIN PRO SUNGLASSES - MATTE BLACKAn upgraded version of one of Costas most trusted and well loved frames, the Blackfin PRO enhances the original design with six new angler approved features to keep you on the water longer. The frame combines the classic look, polarized lens, and comfortable fit with a vented, fully adjustable nose pad for a custom fit. Sweat channels and eyewire drains help maintain clear vision, while side shields, hooding, the new stickier Hydrolite, and metal