All Dragon products are designed with safety and durability in mind, and the Mr. Blonde sunglasses are no exception. For example, the grilamid frames are forged from the highest grade super-polymer materials known to man. And all Dragon frames are armed with their exclusive Variable Configuration Geometry VCG technology - a design process that gives you crystal-clear, no-distortion vision at any point of view through the lens curve.As for the lenses, Dragon's low-molecular weight Carbon based lenses are not only optically true, they block just about anything you can throw at them, including 100% of all harmful UV and Blue Light.