THE RIVERTON STORY New Zealand's oldest permanent settlement in Southland is an eclectic seaside town that lends its name to these size small frames. Stake your claim to new places with these thin, lightweight frames made from our eco-conscious bio-based resin. Riverton, which comes in four colors, also features durable integrated spring hinges and comfortable Hydrolite™ nose and temple pads. Recommended Retainer: Costa Keeper
All Costa lenses have 100% UV blockage for maximum protection and 100% polarization to kill reflected glare. Our 580 technology goes beyond polarization to produce the clearest lenses on the planet. Choose Glass for superior clarity and scratch resistance. Choose Plastic for a lightweight durable option.