With Costa del Mar Brine Readers 580P Polarized Reading Glasses, you get the benefit of readers and sunglasses all in one. These reader fishing sunglasses make a day spent on the water more enjoyable, whether you're scanning the horizon or tying a knot. Featuring added lens power (with no visible line separating the bifocal area) for quick, easy magnification, these Costa readers boast LightWAVE polycarbonate lenses with 100% UV protection plus unmatched clarity, contrast, and definition. They're polarized to reduce glare. Plus, they're outfitted with Costa 580 technology that takes lens performance to new heights by eliminating glare from yellow light, blocking blue light to minimize haze and blur, and boosting red and green for deeper colors and sharper contrast. The lenses also feature both a water-repellent coating and an anti-reflective coating. Tough, lightweight TR-90 nylon frames have an integral hinge frame design and co-injected Hydrolite temples for a secure fit. These Costa fishing sunglasses with readers include a mfrs. lifetime warranty and a hard case. Manufacturer style #: BR 11 OGP. Special lens power sections in the lenses provide magnification for fine detail work LightWAVE polycarbonate lenses are lightweight and impact-resistant Polarized lenses provide 100% UV protection while minimizing glare and visual fatigue True 580 Technology blocks yellow and blue light while boosting red and green light TR-90 nylon frames Hydrolite provides comfort and grip from the temples Includes a manufacturer's lifetime warranty and a hard case