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Set sail.

Styled for dedicated anglers and aquatic adventurers, the Costa Bloke Mirrored 580 Glass Polarized Sunglasses are perfectly suited for regular folks who like to spend tons of time on the water. Extra-large shaping offers optimal coverage from the searing sun when you're on open water, and polarization eliminates glare so you can spot fish and enjoy scenic views more clearly. Speaking of clearly, the glass lenses offer superior clarity compared to polycarbonate lenses, so you can enjoy everything in crisper detail. Plus, glass lenses are also more scratch-resistant, and Costa's glass lenses are thinner so you don't get the fatiguing weight often associated with glass lenses.

The mirror is encapsulated between glass layers so it can't get scratched up. Cam-action pin hinges and a chip-proof finish provides dependability during demanding journeys. And since you don't want to lose your favorite shades to the depths, Hydrolite nose and temple pads provide a secure, comfy fit to keep the Blokes firmly on your face in rough waters.

Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

  • Tough and dependable shades for water lovers
  • Glass lenses provide superior clarity and scratch resistance
  • Polarized lenses reduce glare from open water
  • C-Wall scratch-resistant treatment
  • Hydrolite nose and temple pads ensure comfy and secure fit
  • Reviews
  • Q & A

Best sunglasses to date

  • Familiarity: I've put it through the wringer

These are the best sunglasses I have ever owned. I have owned several other brands, but Costa is all I will buy from now on. They fit my face perfectly, and are comfortable to wear all day. I have the blue mirror lenses and they are crystal clear, while still blocking out the sun. Really cannot say enough good things about these glasses.