We have the solution for you. These lenses have an integrated injected lined bifocal. The lenses are made of Polycarbonate. which is an impact resistant plastic. As always our lenses are edged right here in the USA.
Replacement Lined BIFOCAL Lenses for Oakley GASCAN Brown/Amber Polarized +2.50 would be ideal for individuals seeking a high-quality optical solution for their bifocal vision correction needs while matching the aesthetic appeal of their Oakley GASCAN sunglasses.