The Blu polarized lensesprovide high contrast for better visual acuity on bright sunny days. They are good in varying light conditions and have the highest protection from harmful sunlight filtering out harmful UV rays. Dark enough for wearing in bright sunlight but improve contrast enough to be able to see indoors.
TAC Lens Technology
Tri Acetate Cellulose (TAC) polarized lenses feature a new lens technology formulated for superior visual and polarization clarity. They have a scratch coating and block 100% harmful UV rays up to 400 nanometers. These lenses are very lightweight and highly impact resistant.