Modern styling and a slightly oversized frame give the SunCloud Vanna polarized sunglasses a touch of hipness and a heaping amount of eye protection from the sun. Polarized lenses reduce 99 of visible glare from water, snow, sand and pavement for increased visual acuity and decreased eye strain. Polycarbonate lenses are 20 times more impact resistant than glass and a third the weight theyre also acid- and heat-resistant. Grilamid lightweight nylon frames offer a consistent fit and flexibility at any temperature, and they are extremely impact resistant. Tortoise frames feature polarized brown lenses to eliminate glare and enhance contrast while maintaining accuracy of color transmissions. Black frames feature polarized rose lenses with a silver flash mirror coating to eliminate glare and provide an optically comfortable lens. Medium-large fit.