Costa Mag Bay Sunglasses, Named in homage to the mangrove-lined, estuary Magdalena Bay in Baja, California that has some of the best sport fishing anywhere, the Costa Mag Bay sunglasses are large-fit and ready for larger-than-life adventures, these Costa men’s sunglasses are 100% polarized and focused on performance. A trusted tool of any Angler looking for fishing Nirvana or a Voyager looking over the horizon.
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.
Lightwave 580G Glass Lenses, Superior clarity & scratch-resistant
- Glass provides the best clarity in material
- Encapsulated mirrors (between layers of glass) are scratch-proof
- 20% thinner and 22% lighter than average polarized glass
Lightwave 580P Polycarbonate Lenses, Lightweight & Impact-resistant
- Polycarbonate & Trivex are your lightest and most durable lens material options
- C-WALL® is a molecular bond which is scratch-resistant