*TAC stands for 'Tri Acetate Cellulose'. TAC Polarized Lenses are highly scratch resistant and also extremely lightweight. The lens is thicker and more durable in addition to offering much clearer visibility while in direct sunlight.
** International orders will ship for a flat rate of $5.00. International orders normally take 6-14 days for delivery. Some international orders are subject to duty fees and customs clearance in the destination country.