I see that Bell in the US have a DOT approved helmet for 'cruisers' that is also available in khaki. If they'd only extended the rim a little, it would look just like the Mk11 'Battle-Bowler'.
They are "uniform" for the 1 % ers.
Painted matt black so they can fry the last few remaining brain cells left in their heads.
They replaced the ski helments ( also painted matt black ) that they all wore to "express their individualism "