You know that feeling you get when you've been wearing sunglasses all day? Well, forget it. This member of our super-light frameless collection weighs in at a feathery 16 grams. But lightweight doesn't mean fragile. TR90 nylon and polarized polycarbonate lenses make the Ballast as durable as it is comfortable. Top it all off with Costa's COSTA® 400 lenses, and you've got a pair of glasses that's at home in, on and around the water.
Features:
* Hinge: Integral
* Lens Size: L
* Frame Fit: M
* Lenses: Polycarbonate
Which lens is for you?
Only one thing should come between your eyes and adventures: the best lenses. Ours deliver amazing color, contrast and clarity, so you can see your world purely. Here's what we use to make them.
Glass:
the most optically correct lens material offering the purest vision. Our LightWAVETM glass lenses are 20% thinner and 22% lighter, and still exceed federal standards for impact resistance. Available in 580G and 400G.
CR-39®:
exceptional resolution in the most optically correct, lightweight and scratch-resistant plastic lens material out there. Available in 400P.
Polycarbonate:
Just like Costa 580G glass lenses, our Costa 580P polycarbonate lenses block yellow light, boost red and green light. They are the clearest lenses on the planet.
LIGHTWEIGHT - The reason people love polycarbonate lenses in their sunglasses is first and foremost because they're lightweight. With 580P, they can now get Costa 580 clarity in a pair of sunglasses that's so lightweight they might forget their even on.
IMPACT RESISTANT - We know the type of people that wear Costas and we know the type of things they spend their time doing. Costa 580P lenses have been tested to meet or exceed the rigorous impact standards set forth by the American National Standards Institute, including ANSI Z80.3 and ANSI Z87.1.
DURABLE - For the 580P lens we developed a proprietary coating called C-WALL™. The C-WALL™ coating is a molecular bonding process with an oleophobic, hydrophobic hard coating that repels water, oil, dust and scratches. Our customers work hard and play hard, and 580P is ready.
They're not just off-the-shelf sun lenses stuck in our frames. These are real Costa lenses, with the color, clarity and contrast you'd expect from the best sun lenses.
Silver Mirror (Copper Base):
Encapsulated mirrors optimize light transmission and enhance colors. Perfect for freshwater sight fishing or any outdoor activity with variable light.
Available in 580 only.
Blue Mirror (Gray Base):
Made for the open water. Encapsulated mirrors deliver maximum contrast and color in full sun while eliminating glare.
Available in 400 and 580.
Green Mirror (Amber Base in 400 and Copper base in 580):
Encapsulated mirrors offer enhanced visual acuity for fishing inshore, flats, rivers and streams.
Available in 400 and 580.
Gray:
Perfect all-around choice for sports on water and land. Maintains color saturation and natural contrast in medium to bright sun conditions.
Available in 400 and 580.
Amber:
Excellent all-around lens that delivers the brightest field of vision. Great choice for sight fishing, driving and everyday activities where high contrast is needed.
Available in 400 only.
Copper:
Made for sight fishing, driving and everyday activities. Cuts glare and enhances contrast and color, providing eye comfort in any conditions.
Available in 580 only.
