Black Ace Black Sunglasses with Polarized Black Lenses Material: BPA free plastic frame + temples Frame Color: Lens Color: T AC polarized revo lens, UV400 Stay shaded in style with the Black Ace sunglasses. Built with a BPA-free plastic frame and temples, these shades feature TAC polarized revo lenses that block 100% of harmful UV rays (UV400). The lenses are scratch-resistant, impact-resistant, and ultra-lightweight—ideal for everyday wear, beach lounging, or road trips. What is TAC Polarized Lens? TAC stands for Tri Acetate Cellulose (TAC) - this polarized type of lens feature cutting edge tech formulated for superior visual and clarity. The technology is also considered scratch resistant due to its coating, impact resistant, super-lightweight, and of course blocks 100% of harmful UV rays.