Costa Del Mar Black Fin Sunglasses -
The Blackfin's frame features a large fit with integral hinges. Each pair of Costa's Blackfin 580 G Polarized sunglasses features 100% protection from UV A, B, and C rays, 100% polarization, water-repellent coating, and anti-reflective coating. The Blackfin's mirrored lenses are made of top-quality optical glass. Manufacturer's limited lifetime warranty.
About your Costa lenses:
Costa 580 Technology.
Yellow light is the enemy. The patented Costa 580 lenses incorporate an advanced filtering compound into the lens material that reduces yellow light. This delivers enhanced colors and better visual acuity in all conditions. It's embedded in the lens, which means it's warrantied for the life of the glasses. All 580 lenses are Costa's LightWAVE glass.
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