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Product Information


Hard-core sunglasses for hard-core saltwater junkies. These co-injected co-molded frames combine perfect fit with the best polarized lenses on the planet to give you maximum comfort and vision on the water. A true sportsman is always prepared, so keep an extra pair in your tackle box.


  • Comfortable medium fit.
  • Integral hinge.
  • Heavy-duty TR 90 nylon frame.
  • Includes hard case.
  • 100% UV light blockage for max protection.
  • 100% polarization kills reflected glare and reduces eye strain.
  • Built by hand and backed for life. Every pair of Costas include a lifetime warranty.
  • Plastic lenses are lightweight, impact- and scratch-resistant.Glass lenses have the greatest clarity and are scratch resistant.
  • This style is prescription ready, click here to learn more about Costa prescriptions.


  • Base curve of 8.
  • DBL: 17.5mm
  • Temple Length: 117.6m
  • Lens size A/B: 60.5mm/34.8mm

FATHOM is rated 5.0 out of 5 by 5.
Rated 5 out of 5 by from The fish get all the good stuff! Had Fathom's for many years. Swore I would never wear them on PWC's. Too lazy to walk up to house and get cheap sun glasses one day last summer on Lake Hartwell. Illustrated the Lipton Tea plunge to my wife off the back of the ski. Forgot Costa's were on my head. What a sick feeling when I surfaced and wife asked where my sunglasses were. Say it with me, "The fish get all the good stuff!".
Date published: 2016-01-08
Rated 5 out of 5 by from Miss my glasses I love these lens and glasses for fishing , but, now they are sitting at the bottom of the deep blue sea in front of the Willy T's off of Norman Island in the British Virgin Islands , I need another pair!!!!
Date published: 2015-11-23
Rated 5 out of 5 by from Love the fathoms!! Had to settle for these frames. I was down in the British virgin islands and lost my blue frame with green lense fathoms and if I would have known you were discontinuing the frames , I would have stayed longer at Willie T's and found them on the bottom .
Date published: 2016-01-09
Rated 5 out of 5 by from Awesome glasses my 1st pair was stolen, and i bought another I love them so much. Great for fishing
Date published: 2016-01-29
  • 2016-02-08T08:41CST
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