Semi round shape with NON polarized lenses. Non polarized lenses make it easier to see your dashboard and electronic devices outside. For the semi round shape to fit your glasses, your glasses need to be a similar semi round shape with your frame rim measuring less than 3mm's thick. Please measure one lens of your glasses carefully to the outside rim of your glasses width x height. We have many different sizes available and only one will fit your glasses, so it is very important to measure your glasses correctly. The semi round shape needs to be nearly the same shape as your glasses and the size clip-on sunglass needs to be the same as the measurement of your glasses or the next size bigger.

Sizes Available
46mm Wide x 45mm Height-Small
48mm Wide x 46mm Height-Medium
50mm Wide x 47mm Height-Medium Large
52mm Wide x 49mm Height-Largest

1.  Your glasses have to be similar in shape to the clip-on. 
2.  Measure one lens of your glasses to the outside rim of your glasses width x height.
3. The clip-on size needs to be the same as the measurement of your glasses or the next size bigger.