ALL DAY COMFORT, ALL DAY CLARITY WITH THE COSTA BLACKFIN POLARIZED 580G SUNGLASSESFish all day with the polarized lenses of the Costa Blackfin Polarized 580G Sunglasses. Don't worry about these falling off, as they have cold-injected nylon and Hydrolite frames that grip more when exposed to sweat and water. These durable, comfortable glasses from Costa are scratch and shatter resistant so you do not have to go easy on them. FEATURESPolarized lens gives you extra protection against intense exposureScratch-resistant coating maintains quality against sand and dirtDurable nylon frames holds tough against drops and accidents20% thinner and 22% lighter than average polarized glassComfortable, large fit is good for larger headsTR-90 Nylon Frame is scratch, sweat, and shatter resistant.