Full-coverage frames provide extra protection on and around the water.Resourceful islanders know how to live sustainably, making use of every part of the plentiful coconut trees. Copra is dried, chopped coconut that is pressed for its valuable oil, and the broad palm leaves of the coconut trees provide cover from the fierce South Pacific sun. The full-coverage Copra Sunglasses from Costa provide natural shade as well. The frames are even 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. Wherever your water adventures take you, their 100% polarized, scratch-resistant 580P lenses will make the journey easier on your eyes.580P Polycarbonate LensesPolarized to eliminate reflective glare and reduce eye strainLightweight, yet durableImpact resistantC-Wall scratch-resistant, smudge-free barrier100% protection from UV lightAbsorbs harmful high-energy blue light (HEV)Cuts haze and blur for greater clarityFilters out harsh yellow lightEnhances reds, greens and bluesSharp contrast with high definitionMirrored lenses deliver superior contrast and color while enhancing visual acuityTR-90 Nylon FramesCastor oil is used to make the bio-based plastic resinBio-based resin offers a 70% reduction in emissions over petroleum-based resinReduced overall carbon footprintFlexible, yet tough and durableLightweightHold their shape under harsh conditionsResistant to heat and coldHydrolite hypoallergenic rubber nose pads prevent slippingCorrosion-resistant, stainless steel integral hinges keep their shapeKey FeaturesComfortable medium fit580P polycarbonate polarized lensesHeavy-duty TR-90 nylon framesIncludes hard case and cleaning clothPrescription readyLimited lifetime warranty