Item No. EF 34 OGP
Polarized Plastic (580)


Slide of


  • Frame Color Black White
  • Lens Material Polarized Plastic (580)
    All Costa lenses have 100% UV blockage for maximum protection and 100% polarization to kill reflected glare. Our 580 technology goes beyond polarization to produce the clearest lenses on the planet. Choose Glass for superior clarity and scratch resistance. Choose Plastic for a lightweight durable option.
  • Lens Color Gray


Frame Color
Black White
Lens Material
Polarized Plastic (580)
Lens Color

In Stock

Not seeing the color combination you like?

Choose your own frame and lens colors to build your perfect pair.

View All Options


Costa Case

Cleaning Cloth

Free Shipping & Returns

Limited Lifetime Warranty

The SEA FAN Story

The reefs off the coast of Florida are teeming with beautiful, brightly colored sea fans, creating a truly mesmerizing underwater landscape. Channeling that spirit, the Costa Sea Fan sunglasses are made to turn heads and catch eyes. Made from durable nylon and outfitted with 100% polarized lenses, these stylish Costa women’s designer Beachcomber sunglasses are ready for relaxing under the sun. 

Additional Information

Performance Technology

Light conditions are constantly changing. To get the most out of Costa lenses, it's important to choose the right color. We offer six lens colors that range from low-light like dawn to extremely bright light with blinding glare.

  • Blue Mirror

    Blue MirrorOpen reflective water

  • Green Mirror

    Green MirrorHigh Contrast

  • Silver Mirror

    Silver MirrorNatural Contrast

  • Gray

    GrayEveryday activities

  • Copper

    CopperVariable light, Driving

  • Sunrise

    SunriseActivities during low light


Polycarbonate (+Trivex in RX)

Lightweight, impact-resistant

  • C-Wall® Molecular Bond
  • Mirror (optional)
  • Polarized Film
  • Prescription Lens
  • C-Wall + Backside UV/AR
Exploded view of 580P lens layers

Frame Specifications

  • Frame Fit: Medium Fit
  • 1. Frame Width 126.5mm
  • 2. Bridge Width 15.8mm
  • 3. Lens Width 57.8mm
  • 4. Lens Height 47.8mm
  • 5. Temple Arm Length 138mm
SEA FAN is rated 4.7 out of 5 by 35.
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
  • y_2017, m_1, d_17, h_3
  • bvseo_bulk, prod_bvrr, vn_bulk_0.0
  • cp_1, bvpage1
  • co_hasreviews, tv_13, tr_22
  • loc_en_US, sid_ef34ogp, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_costadelmar


See what adventures others are taking their Costa sunglasses on.
Share your own with #SeeWhatsOutThere.