Costa Blackfin Pro Sunglasses – High-Performance Polarized Lenses with Durable Design for Active Outdoor Use Lens Color:GRAY 4" diameter pot support arms

4" diameter pot support arms provide a stable

PureGrip Compound: Based on activated silica compounds

And with micro shields and hooding

With dedicated storage for avalanche tools and vertical board carry

Innovative trapezoidal baffle construction = thermal efficiency

Costa Blackfin Pro Sunglasses – High-Performance Polarized Lenses with Durable Design for Active Outdoor Use Lens Color:GRAY 4" diameter pot support armsAn 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