The Marlin Fishing Bifocal is polarized and 100% UV protected. The entire lens is polarized and then a reading bifocal is applied. This style also has side windows that are very helpful. The frame comes in black with gray lenses or tortoise with brown lenses. Frame Measurements: 5 1/4" x 1 1/2" (temple to temple x height of lens) (If you are looking for a polarized style with a flat bifocal, look for the ones that do not have "fishing" in their name.)