I LOVE, LOVE, LOVE THESE FIT OVERS!!!  I've been wearing the drug store fit overs for years that only come in black frames -- BORING!!!!  I have to have the amber lenses for driving (and easier on my eyes in general).  This frame is generous enough to cover my RX glasses frame (which measures 5-1/4" side to side and 1-3/4" top to bottom).  I also LOVE that they offer two colors of frames with amber lenses (it's such a restful color on the eyes)!!  I got the white frames -- and my grandsons informed me I now have "clout goggles."  lol  I don't care -- I just think these are so cute with the rhinestones!!  They are comfortable and fit just as well (if not better) than my old drug store pair!