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Men's Blackfin Sunglasses with 400G Polarized, Mirrored Lenses



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California Prop 65 Warning:
These products may contain bisphenol-A (BPA), a chemical known to the state of California to cause harm to the female reproductive system.

Product Description

You might have gallons of brine in your face and 600 pounds on your hook, but these Blackfin Sunglasses from COSTA 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.

COSTA 400 Lightwave™ Glass

  • The lenses that put COSTA on the map and still outperforms the competition.
  • 20% thinner and 22% lighter than average polarized glass
  • 100% UV light blockage for max protection.
  • 100% polarization kills reflected glare and reduces eye strain.


  • Comfortable large fit.
  • Integral hinge.
  • Heavy-duty TR 90 nylon frame.
  • Includes hard case.
  • Built by hand and backed for life. Every pair of Costa Sunglasses includes a limited lifetime warranty.


  • Base curve of 8.
  • DBL: 17.6mm
  • Temple Length: 114.8mm
  • Lens size A/B: 61.5mm/ 40.5mm


Men's Blackfin Sunglasses with 400G Polarized, Mirrored Lenses

Best Use Multi-Sport
Features Polarized
Scratch Resistant
Lens Material Costa 400 Glass

West Advisor

The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.


by PowerReviews
CostaBlackfin Sunglasses

(based on 3 reviews)

Ratings Distribution

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of respondents would recommend this to a friend.

Reviewed by 3 customers

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Nice glasses but they fog up!!

By Lawson45

from Arkansas, United States

Comments about Costa Blackfin Sunglasses:

I bought a pair of Blackfin with the glass lenses. I love the view through them but I have had a big issue with them fogging up if ithere is no wind on warm days!


Very comfortable

By Breed

from Oxford, FL, United States

Comments about Costa Blackfin Sunglasses:

I'm so happy with these. Fit great, very clear. Buying more


Worth every penny!!

By MikeG

from Philadelphia, PA, United States

Comments about Costa Blackfin Sunglasses:

My wife purchased these for me for my birthday. These sunglasses are amazing!! The most comfortable I have ever worn. True quality!! Don't let the price deter you. Well worth every penny!!

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