Optimal visibility and next level style, the B-1 Goggle was designed to work in unison with your low profile Bern lid. The B-1 Goggle comes locked and loaded with two interchangeable Zeiss lenses, hooking you up with maximum clarity in all conditions. Each lens is fit with a quick-change mag strip and Zeiss’ Sonar Technology so you can swap lenses faster than the conditions can change. See for yourself why the B-1 Goggle is the ultimate winter accessory for your Bern lid.. Magnetic Zeiss Lens: Comes with two quick change magnetic Zeiss lenses - Zeiss Silver Mirror Sonar for superior contrast in sunny conditions, maximum clarity and visual appearance & Zeiss Infrared Sonar Cloudy lens for superior contrast and clarity in medium to low light conditions. Fog and Scratch Resistant: Fog and Scratch Resistant lenses. Quick Change Lens Swap: Includes Zeiss bright-light magnetic lens and Zeiss low-light performance lenses. EN174:2001: Complies with personal eyewear standard EN174:200