The SunCloud Sonic sunglasses protect your eyes from the sun for casual and everyday wear and are polarized for additional anti-glare protection. Lightweight and virtually shatterproof, polycarbonate lenses are 20 times more impact resistant than glass and one-third the weight. Polarized lenses reduce 99 of visible glare from water, snow, sand and pavement for increased visual acuity and decreased eye strain. Grilamid lightweight nylon frames offer a consistent fit and flexibility in all temperatures and are extremely impact resistant. Hydrophilic rubber nosepiece and temple ends become tacky when wet for reliable grip during exercise and hot weather. Special buy.