These Baja Beach™ sunglasses feature new enhanced TAC lenses that let you see in "high definition" and protect your eyes from harmful UV rays! Thanks to their polarized lenses there is absolutely no glare, no eye strain and no squinting - you'll love 'em! Plus, the lenses are made from TAC (tri-acetate cellulose) technology for enhanced contrast. Also features UV 400 protection that blocks 100% of UVA and UVB rays, solid aluminum frames with anodized black finish and spring temple hinges. Cleaning cloth and hard shell hinged case included. * If you are not completely satisfied with the Baja Beach™ TAC difference, simply return it within 60 days for a full merchandise refund.