Looking for a versatile pair of sunglasses? Then look no further than the Costa Mag Bay's. These polarized Costa sunglasses are the perfect hybrid between beach and boat. Use them for relaxing on the sand or as another hardcore piece of equipment out on the water. Not only do they work for all of your outdoor activities, but they also look great. Check out our full review below by our team to see style and performance intertwine with the Costa Mag Bay's.


Costa sunglasses are meant to withstand all of your adventures under the sun with the most efficient polarization at 99.9%. Constructed with optical spring hinges and a heavy-duty TR 90 nylon frame, you really won't want to take these bad boys off. While they are functional, they are also responsible. Made with a bio-based resin, the Mag Bay's will eventually biodegrade, and not live in a landfill when you're done with them. All Costa sunglasses offer a lifetime warranty, and are packed with patented technology that enhances colors and eliminates haze and blur.

Mag Bay

Product Measurements:

The frame of these shades comfortably fit a large to extra large head, and they are constructed with optical spring hinges and a heavy-duty TR 90 nylon frame.

  • Frame Width: 132.6mm
  • Bridge Width: 14.4mm
  • Lens Width: 63.2mm
  • Lens Height: 42mm
  • Temple Arm Length: 132mm

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Prescription Costa Sunglasses

The Costa Mag Bay's are built to last under extreme conditions, and feature materials that are the best on the market. Use them anywhere, because these sunglasses can not only handle any adventure, but also any of your prescription needs. For more information or any questions, simply contact one of our expert opticians!