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Mayfly
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Filtering reflective glare is essential for anyone on the water or outdoors. We sell only polarized sunglasses.
Your Costas absorb 100% of UV light, providing you the best in light management and protection.
The C-Wall coating provides extra scratch-resistance and a barrier that repels water, oil and sweat for easy cleaning.
Like its namesake, Mayfly is elegant, diverse and versatile. She exudes an oversized look and water-ready features for your complete enjoyment under the sun.The boldly femme, cat-eye design offers maximum light blockage and a wider field of view, and fully adjustable, textured and vented nose pads ensure a secure fit and helps keep lenses fog-free. With eyewire drains and channels, water and sweat will stay away from your eyes and keep you focused on the next adventure.Continuing our reputation for creating the best performance eyewear on the water, Mayfly is made to improve every experience.
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1. Frame Width: 128 mm |
2. Bridge Width: 15 mm |
3. Lens Width: 57.7 mm |
4. Lens Height: 46.8 mm |
5. Temple Arm Length: 123 mm |
Regular Fitting
A large lens front designed to fit those with an average-sized head.
8 Base Curve Decentered - Max Coverage
Frames with maximum-coverage and wrap that help reduce light leak.
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Blue Mirror
Best for bright, full-sun situations on the open water and offshore.
- Gray Base
- 10% light transmission
Optimal usage
- Boating and fishing in deep water
- Open reflective water
- Harsh sun
Costa 580® lenses
Costa 580® lenses were designed by in-house light spectrum experts to enhance colors because standard sunglass lenses fell short.
The lens' multipatented technology
manages light by:
- Absorbing Harmful High-Energy Blue Light (HEV)
- Enhancing Reds, Greens, and Blues
- Filtering Out Harsh Yellow
580® lightwave glass
- C-Wall® Molecular Bond
- Glass Layer
- Encapuslated Mirror
- Polarized Film
- Glass Layer
- C-Wall® Molecular Bond
Superior clarity & Scratch-resistance
- 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
580® lightwave Polycarbonate
- C-Wall® Molecular Bond
- Mirror (Optional)
- Polycarbonate Lens
- Polarized Film
- Polycarbonate Lens
- C-Wall® Molecular Bond
Lightweight, Impact-Resistant
- Polycarbonate & 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
Mayfly
Costa Case
Cleaning Cloth
How to choose lens material
How to choose lens material
From day one, our lenses have set us apart.
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 best lenses on the planet. It selectively filters out the harsh yellow and harmful high-energy ultraviolet blue light, making colors brighter and objects appear more defined.
So no matter what you are doing under the sun, you’ll see it in stunning detail. Glass lenses are best for situations that require ultimate clarity, and our plastic lenses are more cost effective while being more durable for more demanding applications without sacrificing clarity.
GLASS | POLYCARBONATE |
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Technology
Our most high-tech lenses
|
Technology
C-WALL coating repels
oils, water and dust
|
Clarity
Highest clarity
|
Clarity
High clarity
|
Toughness
Scratch resistant
|
Toughness
Impact resistant
|
Protection
100% UV blockage for maximum protection
|
Protection
100% UV blockage for
maximum protection
|
Polarization
Premium polar efficiency virtually eliminates reflective glare
|
Polarization
100% Polarization
kills reflected glare
|
How to choose lens color
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.
Brightest light
Everyday base for the harshest sun conditions
Open Ocean and off-shore fishing
Off-shore fishing, open water sports driving or any task in bright light environments
Variable light
Everyday base for changing light conditions
In-shore/intra-coastal stream and sight fishing
In-shore/Intra-coastal stream and sight fishing
Low light
Highest light transmission with maximum protection ideal for low light conditions (dusk, dawn, cloudy days)
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We want to make sure you get the perfect pair of Costas, which is why we offer Free Returns on qualifying CostaDelMar.com orders.