4D Mag goggles offer a 25% larger field of view than its predecessor I/O Mag and with an upgraded lens change system, it is even easier to switch between the two lenses that are included.
Lens: ChromaPop Everyday Green Mirror
VLT: 23%
Perfect for days when the sun is strong
Extra lens:
Lens: ChromaPop Storm
VLT: 50%
Perfect for cloudy days with low light