Engineered with large size faces in mind, the Smith Reason/Ignitor Mirror OTG adult winter sports goggles are designed for ultimate integration with Smith protective helmets for maximum comfort, venting and fog-free performance. With their spherical lens maintaining distortion-free clarity and a full range of peripheral vision, those alpine ski or snowboard goggles will stay comfortable all day long. Furthermore, those ski goggles are also compatible with Smith optical docking system (ODS) prescription lens. Their lens feature a VLT (Visible Light Transfer) rating of 35%, promoting a clear and accurate vision in both sunny and variable weather.