New Authentic Costa Del Mar Blackfin 10 Sunglasses Tortoise w/Green Mirror Lens 580G

You might have gallons of brine in your face and 600 pounds on your hook, but these sunglasses still won't slip. The Hydrolite co-injected lining takes care of that, and the flexible frame means serious comfort. Blackfin pushes the edge in sunglass performance--so you can push it everywhere else.