AN Sunglasses - BlackInvesting in sunglasses that are labeled UV400 blocks 99 to 100 percent of UV light. This rating ensures that all light rays with wavelengths up to 400 nanometers, including both UVA and UVB rays, are blocked out. Product Features Brand Name: Alexander Noel Style: Fashion Sunglasses Ready for a fun day! Lenses Material: TAC Tri Acetate Cellulose (TAC) polarized lenses feature a new lens technology formulated for superior visual and polarization