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.