Costa Del Mar - Costa Blackfin Sunglasses Lens:Green Mirror 580G Tactile textures indicate knob position

Tactile textures indicate knob position by feel only

Maintains perfect drinking water quality in boats and RVs

Protects up to 6 months in freshwater and 3 months in saltwater

creating a seamless and flexible barrier that is highly resistant to organic and inorganic acids

They sincerely hope that you will join with Tie Down Engineering on continued journey for growth and excellence

Costa Del Mar - Costa Blackfin Sunglasses Lens:Green Mirror 580G Tactile textures indicate knob positionCosta Blackfin Original large coverage icon. Costa's 10+ year bestselling fishing sunglasses. Original Blackfin legend Large frame maximum coverage Wide temples block side light 580 lens technology Decade proven bestseller