Impact resistant UV400 TAC polarized lenses Super lightweight & comfortable MemoryFlex frames Ultra Grip rubber nosepieces and earpieces Fits Lower Nose Bridges and Asian faces Free Microfiber Cleaning Case Experience crisp clear view with TAC POLARIZED precision sunglasses. What are TAC polarized lenses? TAC (Tri Acetate Cellulose) Polarized lenses feature a new lens technology formulated for superior visual and polarization clarity. They are hard coated to resist scratching and block out 100% of all harmful UV rays up to 400 nanometers, and are also very lightweight and highly impact resistant. Polarized lenses eliminate glare from shiny surfaces such as water, chrome bumpers, windshields, mirrors and even rain; offering a clearer, more comfortable and sharper view. Fits lower nose bridges and Asian Faces. Small to Medium Head Sizes.