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.
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.
Frame Material : Grilamid (Tough agains time and elements) - Constructed from Grilamid, a lightweight frame material ideal for everyday wear due to its strength and flexibility.
Hinge : Snap Hinge (Easy open and close) - A hinge that snaps open and closed.