Item No. IB 128 OGMGLP
Polarized Glass (580)


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  • Frame Color SHINY SEAGRASS
  • 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 Green Mirror


Frame Color
Lens Color
Green Mirror
Lens Material
Polarized Glass (580)
Prescription Ready

In Stock

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Costa Case

Cleaning Cloth

Free Shipping & Returns

Limited Lifetime Warranty


Located deep in the Galapagos, the island Isabela brings a depth and intrigue to the entire archipelago. Named to match, Costa's Isabela sunglasses bring head-turning style in a lightweight package. These women's polarized, designer sunglasses bring a stylish nylon frame and plastic or glass lenses to a Beachcomber or Voyager's ideal day in the sun.

Recommended Retainer: Costa Keeper

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 seven 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

  • Gray Silver Mirror

    Silver Mirror
    Everyday activities

  • Silver Mirror

    Copper Silver MirrorNatural Contrast

  • Gray

    GrayEveryday activities

  • Copper

    CopperVariable light, Driving

  • Sunrise

    Sunrise Silver MirrorActivities 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

Frame Specifications

  • Frame Fit: Large Fit
  • 1. Frame Width 127mm
  • 2. Bridge Width 17.2mm
  • 3. Lens Width 63.2mm
  • 4. Lens Height 39.5mm
  • 5. Temple Arm Length 124mm
ISABELA is rated 4.7 out of 5 by 73.
Rated 5 out of 5 by from Costa fan for life I bought my first pair of Costa's 8 years ago (yes, you read that right!) and have had that same pair up until 6 months ago. I owned the Tortoise pair with the plastic amber lenses.The durability of these glasses are amazing! I only got one scratch on the lenses in the time I owned that pair (despite the many times I dropped them) and the frames held up so well! I never got headaches while wearing them and my vision was always clearer (unlike the cheap glasses I'm making due with now). I was pretty upset when I realized that I finally lost them (or they were stolen), but I will be getting another pair soon. Nothing compares to Costa's! I would like to add my twin sister bought a pair of Isabela's at the same time as me and still owns hers. They are truly built to last!
Date published: 2016-11-27
Rated 5 out of 5 by from Amazing Sunglasses!! I bought these about a month ago after having cataract surgery in both eyes and needing good eye protection. I must say, I was skeptical about the blue lenses but, I absolutely Love them!!
Date published: 2015-12-28
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I have a pair of isabela sunglasses but they got scratched how can I be able to replace only the lenses ? I have checked on the website but it not clear enough to understand.. what exactly is the cost for the 580p replacement lenses ? tks 

Asked by: Mirthy
Hi! Our repair technicians will be able to replace your 580P lenses for a fee. It is $69 for 580P lenses, plus shipping. You will need to send in your shades to our repair shop.
Answered by: Costa
Date published: 2017-10-02

I had a pair of Isabelas for years and sadly lost them recently. I had the tortoise frames with Amber lens, but looks like you don't carry the amber lens anymore?? Is the copper the same color? I hope so!! If not, please bring back the amber!

Asked by: Sekelly87
Hi! You are correct that we no longer carry amber lenses. Copper would be the closest lens we have to amber.
Answered by: Costa
Date published: 2017-09-05

Which lenses are a better option for scratch resistance, glass or plastic? What would happen if my glasses get scratched; what is the warranty on the lenses??

Asked by: mandy1234
Hello! Glass is more scratch resistant and provides most clarity. Our limited lifetime warranty covers all manufacturer defects, but not accident or wear and tear. All other repairs can be completed for a repair price.
Answered by: Costa
Date published: 2017-08-29

A screw fell out of my sunglasses. How do I get a replacement screw to fix my glasses?

Asked by: Nicnic23
Hi! Try giving our repair reps a call as they should be able to help.
Answered by: Costa
Date published: 2017-08-08

Frame Medium?

Asked by: annie43
These are a large frame.
Answered by: Costa
Date published: 2017-10-10

Is the silver mirror reflective? Or are they transparent? 

Asked by: DGill
Hi! They are reflective lenses.
Answered by: Costa
Date published: 2017-07-11

I want to replace the lense to a different color, how much would it be?

Asked by: LaPlaya
Hi! It is $69 for 580P lenses and $89 for 580G lenses, plus shipping and handling.
Answered by: Costa
Date published: 2017-07-10

I had a pair of Isabella's with the beige frames that I lost. Can I still get this color?

Asked by: Susana
Hi! The Isabella frame is available in tortoise, black coral, retro tortoise with black temples, pomegranate fade, and shiny seagrass.
Answered by: Costa
Date published: 2017-06-27
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