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Sea Fan

Product Information


The reefs off the coast of Florida are teeming with beautiful, brightly colored sea fans, creating a truly mesmerizing underwater landscape. So the female-focused sunglasses they inspired couldn't be any less appealing. The shiny nylon frames come in five different colors with spring hinges for a comfortable, yet stylish, fit. 


  • Comfortable medium fit.
  • Optical spring 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 6.
  • DBL: 15.8mm
  • Temple Length: 138mm
  • Lens size A/B: 57.8mm/47.8mm



SEA FAN is rated 4.7 out of 5 by 30.
Rated 3 out of 5 by from Super cute frames I ordered these after both my other costa's ended up broke within days of one another. I honestly cannot comfortable drive without them. They are the BEST polarized lenses I have ever tried! But... After promptly receiving the sea fans... I was sad. They say a medium sauce but they were loose on my head. Uncomfortable loose. I have the inlet which is a medium and they are snug in the right way. The sea fan is also very lightweight especially with the plastic lenses. I prefer a more hearty frame. So on looks alone: 5 Costa quality: 5 Sizing: 2 ... I feel it runs big Hardiness/ weight: 2 ... very lightweight. That's why I gave a 3. Great glasses, just not for me.
Date published: 2016-07-09
Rated 5 out of 5 by from Recent purchase I recently purchased a pair of sea fans for my wife, for Christmas. The website was easily navigated and I got the order a couple days earlier than expected. They also gave me z free hat with my order! I was very pleased with my transaction.
Date published: 2016-01-11
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