I am very mixed on this product.  The frames and lenses are superior quality, but the style and comfort were lacking.  They look great on the shelf, but they look like old man glasses in some respects.  The ear rests are almost sharp and are made of O material and started to hurt on long drives or extended wear.  The polarized lenses do wonders for relieving eye fatigue when driving on sunny days.  The shape of the frame blocks out the sun from the side so you don't have to worry about side shades when the sun is coming in your side window.