Bolle Vibe Sunglasses, Polarized TNS Gun AF, Shiny Blue They are light yet offer good shock resistance. Great for sport and general purpose wear Eliminates glare from water or road surfaces ensuring purity of vision With a visible light transmission of 10%, they are ideal for sunny conditions 6/8 base. Offers better periphery vision Our polarized lenses align light rays from the sun, giving you a crystal clear view at all times The only prescription program which ensures optimum precision, comfort and frame balance for sports sunglasses Our polycarbonate lenses are 20 times more impact resistant than glass and three times lighter