The Eternal is a slightly bigger, but not oversized pair of Oakley womens sunglasses. The frames that are a tad thicker gives them a strong and powerful appearance and character and slightly hint at the stylish sunglasses frames from the 1960's. There is one big difference however, they have chosen not to use acetate for these glasses, as they did in the 60's. These frames are made from the patented lightweight O-Matter material. So you have the style, but not the weight. Which results in a much higher wearing comfort.