One visor fits all the G4 helmet sizes. Visors have an anti-fog inside and anti-scratch outside. The G4 visor is tested for its optical qualities, and as such it has been certified and carries a CE mark.
The visor is very simple to remove. Undo the two side plates screws on both side of the visor. Remove these plates and slide the visor forward. The tinted and mirrored visors are certified to Category 2 against ISO 12312-1:2013.
We are taking pre-order now for estimated delivery end of July. Depending on availability.