Bolle Women's Solden Sunglasses, Shiny Black Frame, True Neutral Smoke Lens Acetate frame Acetate lens Polarized Extensive curvature provides for the widest field of vision as well as optimum Protection for the Eye area Light yet offer good shock resistance Eliminates glare from water or road surfaces ensuring purity of vision With a visible light transmission of 10 percent , they are ideal for sunny conditions 8 base. Improves awareness and offers good periphery vision