These X 1 Advanced goggles from Wiley X Eyewear meet high standards to provide you with maximum safety protection. Your eyes are fully protected from the sun, sand and the wind with interchangeable lenses. The removable foam gasket provides comfort, and an adjustable elastic band fits comfortably around your head. Maximum glare reduction. Won't distort colors. Excellent in bright/glare conditions. Light transmission: 15%-20% depending on frame style, 12% WX Abby, 11% Polarized.