text: I bought these for my dad to wear over his prescription glasses.<br />The polarization is nice but the glasses themselves are not made of the nicer material as in the images. We had previously had a pair made of this flimsier material and the ear pieces kept breaking. Also, I you have a thiner face and a thiner nose bridge they have a tendency to slide forward.<br />The medium sized glasses (purchased separately) were made of much stronger plastic.