Costa Blackfin Sunglasses: Tortoise / Blue Mirror - MFG#BL-10-BMGLP

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.

400 Glass Lense