Photochromic Bifocal Safety Glasses, PSG-TGB-206YBS

These are ANSI Z87-Approved, OSHA-compliant safety glasses with Photochromic lenses that turn clear indoors and gray in the sun. These are great for anybody who needs to wear safety glasses for work but works both indoors and outside.
***Be advised, Photochromic lenses generally do not work in the car because they are activated by UV rays, and most car windshields are coated to block UV.***