Large, full-coverage frames with polarized glass lenses provide the extra eye protection you need on and around the water. The New Zealand town of Reefton is world-renowned for its freshwater fishing. Costa's Reefton Polarized Sunglasses are well on their way to making a name for themselves as well. These large size sunglasses are durable and reliable thanks to their heavy-duty TR-90 nylon frames made with resin from the castor plant. This bio-based resin offers a 70% reduction in emissions over petroleum-based resin, helping to reduce the overall carbon footprint. 100% polarized, scratch-resistant 580G Lightwave glass lenses ensure reflective glare and eye strain are minimized or eliminated altogether. Their co-molded temples, Hydrolite nose and temple pads and cam action spring hinges all work to help keep them firmly where they belong on your face. Although, if you want to be extra sure they don't end up in the drink, a neoprene retainer or leash (sold separately) is inexpensive insurance. 580G Lightwave Glass Lenses TR-90 Nylon Frames