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Product Information


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.


  • Comfortable large fit.
  • Integral hinge.
  • Heavy-duty TR 90 nylon frame.
  • Includes hard case.
  • 100% UV light blockage for max protection.
  • 100% polarization kills reflected glare and reduces eye strain.
  • Built by hand and backed for life. Every pair of Costa Sunglasses includes a limited lifetime warranty.
  • Plastic lenses are lightweight, impact- and scratch-resistant.
  • Glass lenses have the greatest clarity and are scratch resistant.
  • This style is prescription ready, click here to learn more about Costa prescriptions.


  • Base curve of 8.
  • DBL: 17.6mm
  • Temple Length: 114.8mm
  • Lens size A/B: 61.5mm/ 30.5mm
BLACKFIN is rated 4.6579 out of 5 by 38.
Rated 5 out of 5 by from Best Frames I have five different pairs of blackfins. With the new injection molding these are by far my favorite glasses. I also have a pair of cuts, wingmans, corbinas, tuna alleys, double haul, isabellas, south point, cudjoes and a few others. Just wish costa would bring back the gunmetal frame for the blackfins. I'm a walking promotion and will never purchase another brand of sunglasses. Thanks Costa Crew!
Date published: 2015-11-24
Rated 5 out of 5 by from Must have for the flats fisherman I have owned a few different models but my favorite are by far the Blackfins. I use the copper colored lenses on the flats and they absolutely give me an advantage in being able to spot fish for my clients. Here in Hawaii we have absolute giant Bonefish but our water is slightly deeper than you might find in say the Bahamas so glasses that cut the glare are a must. The 580 lenses are so clear and the copper tint brings out every detail on the flat. Its so common to have clients with other "high end" polarized glasses that are unable to see the fish just infant of them when my Blackens let me spot them 100yds away.
Date published: 2016-05-25
Rated 4 out of 5 by from Stupid rubber. Bought these Blackfins, they're great sunglasses. Sent them in for a lense repair, Costa was very timely about this. Got them back and wore them for a few months, rubber started coming off. What the heck is the point of putting rubber around the inside of sunglasses when it doesn't really hold them to your head? Not very happy with these because of the rubber mess on them.
Date published: 2016-03-24
Rated 5 out of 5 by from Perfect sunglasses I lost my pair of Howler's in the ocean last weekend at the air and sea show, so I had to purchase another pair of Costas, kinda glad I lost the Howler's because the Blackfins are awesome, the clarity, the fit, overall the best pair of glasses I ever purchased. I will make sure next time not to jump in the water with my Costas on.
Date published: 2016-05-14
Rated 5 out of 5 by from GREAT view!! I just bought the Blackfin in green and I LOVE THEM ALREADY! They fit great and the view is crystal clear!! Definitely worth the money! Also available in prescription which is also neat. I typically don't trust reviews but I will trust Coasta! Lifetime warranty! Hoping to be able to get a second pair soon in prescription.
Date published: 2016-05-23
Rated 5 out of 5 by from Great Glasses I have 2 pairs of this same model. I have had other models but these fit me perfectly. I will only buy the blackfin for now on. Costa is also very good at repairing the glasses. I have had them fix the lenses once already.
Date published: 2016-01-22
Rated 2 out of 5 by from Rubber came off My husband has had these for less than a year and the rubber came off. I wish there was a way to purchase these exact sunglasses in black that doesn't have the rubber piece. Hoping to send them in to be repaired.
Date published: 2016-01-07
Rated 5 out of 5 by from Great fit great glass This is my 6th pair of Costas. I'm happy with them. Try look very well and fit very well also. I always recommend any Costa 580G. They are good.
Date published: 2016-02-09
  • 2016-05-31T08:17CST
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