I was very confused going back and forth between the Ray Ban website and Revain trying to figure out what exactly I was getting. This is how the number system works. The first four digits are the model number. (4151) The second three digits are the border color. (622 = black rubber, 601 = glossy black) The last numbers indicate the tint of the glass. (59-17 = G15, dark green) These numbers appear in gray under the retail price on the Ray-Ban website. It's very hard to tell what you're getting if you can't find this information. The sunglasses are slightly larger and wider than I expected. (Usually lenses are about 55mm wide, that's 59). They are slightly larger than the New Wayfarer. They remind me of the 3D glasses that come with expensive 3D TVs. They fit great and are very comfortable. They block your peripheral vision a little more than wire-frame sunglasses, but much less than most modern models, so they don't interfere with your driving.
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