Off the coast of Baja California, Magdalena Bay has mangrove lined swamps, fertile estuaries, and some of the best sport fishing in the world. The extra large fit Costa Mag Bay Polarized 580 Glass Lens Sunglasses were made for big adventures in a fisherman's paradise wherever you find one. Glass lenses are more scratch resistant than plastic, so you can enjoy crystal clear vision for years to come. The extra large fit provides plenty of protection from the sun to reduce eye fatigue when you're staring across the water all day. The heavy duty frame is made to take a beating but is also lightweight for a comfortable feel. The lenses block 100% of UV light, and they're polarized to eliminate glare from the surface of the water so you can spot your target more easily.