Smith MAG interchangeable system, Includes bright light and low light ChromaPop performance lenses, Spherical carbonic-x lens 5X anti-fog inner lens TLT lens technology for crystal clear vision OTG compatible. Responsive Fit frame design, Quick-Fit strap adjustment system with clip buckle, 3-layer DriWix face foam. The I/O MAG XL’s extra-large spherical ChromaPop lens enhances clarity your experience. With OTG compatibility in mind, the I/O MAG XL design integrates seamlessly into helmets to provide the ultimate it and function as a fog-free system. Includes bright light and low light ChromaPop performance lenses. TLT lens technology for crystal clear vision OTG compatible. Spherical carbonic-x lens 5X anti-fog inner lens. With clip buckle, 3-layer DriWix face foam Quick-Fit strap adjustment system. Responsive Fit frame design.