This pair of frames can be attached to the Envision Glasses.

The Smith Optics comes with zero-power lenses that you can replace with custom prescription lenses at your local optician.

The third picture shows Yet, who is using the Envision Glasses with the Smith Optics frames outside and she had her lenses customised to a darker shade so she can use the Envision Glasses outside. This product is only the frame that is designed for the Envision Glasses.