Lens Technology : HAPPY Polycarbonate Lens (See Happy with Happy Lens Technology) - Our patented HAPPY Lens Tech is scientifically formulated to allow in the sun's good rays while blocking the bad, letting you SEE BETTER by enhancing color and contrast, while helping you to FEEL BETTER by boosting your mood and alertness-something you'll feel even after taking your sunglasses off.
Hinge : Snap Hinge (Easy open and close) - A hinge that snaps open and closed.
Constructed from Grilamid, a lightweight frame material known for its durability and resistance to the elements, suitable for daily use because of its strength and flexibility.
Lens Coating : Mirror Coating (Reduces the amount of light entering) - A thin metallic layer on the outside of the lenses that reflects glare away from the sunglasses rather than letting it in, reducing the amount of light entering the eyes.
Usage Conditions : Cat. 3 lens (Sunny weather) - Darker lenses and strong mirrors shield your eyes from bright sun on bluebird days when SPF 30 is a must.