Well Lotus I have to say I am very impressed !!!
But !
( I do not want to push the enveloppe too far )
lets talk about L-39 Pilots helmets !
1.
First, the military L-39 of the East
The old russian type helmet of the seventies !
and
The new russian type helmet of the eighties Plus !
2.
Second, the private Usa L-39
The old "Vietnam" type helmet
The newer "Current" Usaf helmet
and, finally....
3.
Third, the french GSF/Gallet helmet of the Breitleing Jet Team
Do you plan any "dynamic" options about it ?
Sorry to ask you this but ..... anyway ...... the question is asked !

VaporZ