The Electric Back Line Polarized Sunglasses looks so sleek and sexy with its clean, sculpted Italian-crafted lines you'll forget they're the real deal when it comes to superior protection. An insanely light and strong injection-molded nylon Grilamid frame flexes for enduring comfort and fit and retains its shape no matter the temperature. Thin, light polycarbonate lenses are impact- and scratch-resistant and block 100% of the sun's brutal UV rays. The Back Line lenses are also polarized to eliminate glare, boost color, and reduce eye fatigue for sunup-until-sundown comfort. Yes, it's hard to believe all this quality exists within that stunning beauty.