As New German M10 Gas Mask
This mask is like the popular U.S. M17 issue mask. I was told it will accept the U.S. accessories and that the filters are the same size. But I have not tried to do this myself.
Complete with drinking tube that fits U.S. canteens, voicemitter, defogging valves, set of extra filters (NIB), and some sort of hood or over garment.
I don't know a lot about this mask, so I'm guessing about the hood/overgarment. It is some sort of protective covering for your body.
Carry bag also included.