Commander 1 goggles can be worn by themselves or as an over the glass goggle (OTG) for small to medium sized glasses. Polycarbonate, Interchangeable lenses give you day and night protection including our exclusive FogStopper coating. ANSI Z-87.1 safety rated goggles for work or fun. Interchangeable Lens Goggles Four Lens Tint Options in Frame 2 Lens Sets Include FREE Lens Bag Snow Pak 3-Lens Set Includes FREE Lens Bag Indestructo Frame Exclusive Fogstopper Lens Coatings Impact Resistant Polycarbonate Lenses 99.9% Protection from Harmful UV Radiation Polycarbonate Lens Tested @100mph+ Impact Stash Bag Included Limited Lifetime Warranty Meet or Exceeds ANSI Z-87.1 OVER-RX FIT Max. Width 4 7/8" Max. Height 1 7/8"