- plastic
- 100% polarization kills reflected glare and reduces eye strain
- 100% UV light blockage for max protection
- Built by hand and backed for life. Every pair of Costas include a lifetime warranty
- Includes hard case
- Integral hinge
You might have gallons of brine in your face and 600 pounds on your hook, but these sunglasses still won’t slip. The Hydrolyte 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.
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