Lens width: 67 millimeters

– These  Polarized Bifocal Glasses are made of TR90 thermoplastic. Thermoplastic is a Swiss technology that offers extreme stress and crack resistance, flexibility and an incredibly smooth finish. TR90 is extremely durable, flexible and lightweight. It’s also extremely heat resistant, so you don't have to worry about the frames melting, getting sticky, or getting too hot under the sweltering sun.

INCREDIBLY FLEXIBLE , COMFORTABLE FRAMES , RUBBER NOSE PIECES -The flexible, light TR90 semi rim-lesss frames will conform around your head perfectly. You can wear these  bifocal reading glasses for hours playing an entire 18 holes of golf, motorcycle riding, running marathon or fishing for an entire day. Soft rubber non-slip nose pieces make these glasses perfect for cycling, tennis, baseball, and golf.

GLARE-CUTTING POLARIZED LENSES - Not only do these polarized bifocal sun readers provide 100% UV protection against UVA & UVB rays, . Polalenses knocks out glare from blinding shiny objects such as chrome, mirrors, & water. If you are a fisherman, you will be able to see below the surface of water to find those hungry fish. You will also be able to see better tying and baiting hooks. Polarized lenses also help you see better in the rain.