Details An enhanced version of one of Costa&';s 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 HydroliteA(R) and metal keeper slots keep your frames and your focus locked in. Fit: Regular A medium lens front designed for those who prefer to cover an average portion of the face. Nose Bridge: Adjustable Nosepads Adjustable nosepads can be widened or narrowed to fit your unique nose shape. Regular Fitting A large lens front designed to fit those with an average-sized head. Optimal usage Excellent for sight fishing Everyday activities Most versatile Cloudy days