Survey untouched waters while wearing the Costa Del Mar Caballito Polarized Sunglasses, and youAAAll discover a whole other level of visual clarity thanks to the new 580P polycarbonate lenses. Even under the harsh, mid-day sun, these retro-style shades block out harmful UV rays, cut through distracting yellow light, and provide a level of unmatched contrast. Toss on this workhorse of the Costa Voyager series and relax your eyes while you hop a plane or toss a line into the great blue yonder. Product FeaturesFrame: nylonHinge: steelLens: Interchangeable Lens: noPolarized: yesFace Size: mediumFrame Measurements: nose bridge [0.75 in], lens length [2.3 in], temple piece [5.3 in]Case Type: hardNose Pads: yesTemple Pads: yesRecommended Use: boating, fishing, everydayManufacturer Warranty: lifetime