Oakley Men's Canopy (A) Snow Goggles Flexible O Matter frame with O-Flow Arch conforms to your face for optimized comfort and fit, and allows for easy breathing and unrestricted airflow Discreet frame notches at temples provide compatibility with most prescription eyewear, without compromising fit Dual-vented lenses with F3 anti-fog coating for superior fog elimination Prizm lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility High Definition Optics (HDO), and 100% protection againstUVA,UVB,UVCand harmful blue light