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. Each batch of our polarized TAC lenses are also tested for effectiveness and were specifically chosen due to their lightweight design and high performance for all of your active families! READ MORE