Most polarized lenses eliminate glare by blocking reflective light. But Costa's patented 580 lenses go further, blocking the perfect amount of harsh yellow light and harmful blue light while enhancing reds, blues and greens. The result: less haze, less blur, greater contrast and greater clarity.
Nylon frames are tough and durable, with more color options manufactured using the environmentally friendly bio-resin process. TR-90 nylon is a premier material for sports and performance frames as it is resistant to heat and cold. Though it is flexible, it is still durable. Nylon is easily molded into wraparounds and other shapes.
Channels run the length of the temple that enable airflow from the vents to cool, wick away sweat and moisture, and drain through the openings on the temple tips, and thinned-out inner bottom eyewire tucks closely into the back surface of the lens, which allows sweat and moisture to drain down the back surface of the lens and off the bottom of the frame.
|Lens Width||61 mm|
|Bridge Width||18.6 mm|
|Lens Height||38.8 mm|
|Temple Arm Length||121.3 mm|
|Base Curve||Base 8|