When the afternoon sun dials it up a notch, slip on the SunCloud Ratchet polarized sunglasses for superior protection from the suns rays. 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. Hydrophilic Megol nose pads and temple tips become tackier when wet for reliable grip during exercise and hot weather. Havana frames feature polarized brown lenses to eliminate glare and enhance contrast while maintaining accuracy of color transmissions. Matte black frames feature polarized gray lenses to eliminate glare and produce the truest transmission of natural colors. Medium-large fit.