Item No. ON 21 OSCGLP
Polarized Glass (580)


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  • Frame Color Palladium
  • Lens Material Polarized Glass (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 Silver Mirror


Frame Color
Lens Material
Polarized Glass (580)
Lens Color
Silver Mirror

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Costa Case

Cleaning Cloth

Free Shipping & Returns

Limited Lifetime Warranty

The CONCH Story

In the style and spirit of the Keys or Bahamas, Costa Conch sunglasses boast eye-catching style, 100% polarized, scratch resistant, mirrored lenses, Monel alloy frames and integral hinges that’s perfect for any Beachcomber or Voyager. At home on white sand or in blue waters, these Costa men’s sunglasses are flawless for catching an updraft on a kiteboard or some rays in a hammock.

Additional Information

CONCH is rated 4.6 out of 5 by 28.
Rated 5 out of 5 by from Style and Performance I've been a Costa customer for years, and always wanted to try the metal frames. They seemed a bit bulky when I first saw them, but after trying them on I can say this is not the case. I actually have two pair. Rose gold with blue mirror glass and Palladium with green mirror glass. They always get compliments and each pair provides unmatched vision quality in all sorts of lighting conditions. I use the blue for ball games and when I'm on the water and the green for everything else. I love that Costa provides more style options with their top notch quality lenses. Couldn't be happier.
Date published: 2016-03-24
Rated 5 out of 5 by from Excellent glare elimination! My husband fishes professionally and he would not let me purchase my normal designer brand sunglasses for the prices I pay for them but he was willing to let me purchase some Costas that sponsor his tournaments. With that said, I chose the Conch Palladium in 580G Blue Mirror and absolutely LOVE them! I can see so much more clearly when driving because they remove the glare. He even borrows them and I am going to purchase a pair for him for upcoming Father's Day. They are a bit loose on my medium head but not too bad.
Date published: 2016-05-31
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  • clientName_costadelmar


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Frame Specifications

  • Frame Fit: Large Fit
  • 1. Frame Width 130mm
  • 2. Bridge Width 15.3mm
  • 3. Lens Width 59mm
  • 4. Lens Height 44.2mm
  • 5. Temple Arm Length 123mm

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

Costa 580G Lightwave Glass
  • C-Wall® Molecular Bond
  • Glass Layer
  • Encapuslated Mirror
  • Polarized Film
  • Glass Layer
  • C-Wall® Molecular Bond
Exploded view of 580G lens layers


Lightwave Glass

Superior clarity & scratch-resistant

  • Glass provides the best clarity in material
  • Encapsulated mirrors (between layers of glass) are scratch-proof
  • 20% thinner and 22% lighter than average polarized glass

U.S. PATENT NO. 6.334.680
U.S. PATENT NO. 6.604.824

Costa 580P Polycarbonate (+Trivex in RX)
  • C-WALL® Molecular Bond
  • Mirror (Optional)
  • Polycarbonate Lens
  • Polarized Film
  • Polycarbonate Lens
  • C-WALL® Molecular Bond
Exploded view of 580P lens layers


Polycarbonate (+Trivex in RX)

Lightweight, Impact-Resistant

  • Polycarbonate & Trivex are your lightest and most durable lens material options
  • C-WALL® is a molecular bond which is scratch-resistant

U.S. PATENT NO. 7.506.977

Costa 580P Polycarbonate (+Trivex in RX)
  • C-WALL® Molecular Bond
  • Mirror (Optional)
  • Polycarbonate Lens
  • Polarized Film
  • Polycarbonate Lens
  • C-WALL® Molecular Bond
Exploded view of 580P lens layers