This helmet, I suppose Gilbert and Sullivan

[ARAC]
This helmet, I suppose
Was meant to ward off blows
It's very hot
And weighs a lot
As many a guardsman knows
As many a guardsman knows
As many a guardsman knows
As many a guardsman knows
So off
So off that helmet goes

[SOLDIERS AND GIRLS]
Yes, yes, yes!
So off that helmet goes

[ARAC]
This tight-fitting cuirass
Is but a useless mass
It's made of steel
And weighs a deal
This tight-fitting cuirass
Is but a useless mass
A man is but an ass
Who fights in a cuirass
So off
So off goes that cuirass