Oakley Airbrake Snow Goggles Rigid exoskeleton utilizing Switch lock technology for fast and easy lens changing, with a flexible O Matter faceplate that conforms to your face Rigid O Matter strap outriggers provide balanced fit, with or without a helmet. Fits most helmets Optically correct dual-vented Lens with F3 Anti-fog coating Plutonite lens material provides 100% protection againstUVA,UVB,UVCand harmful blue light High Definition Optics (HDO)that maintain startling clarity at every angle of vision