This helmet is pretty big but still a tight fit on mast adults. Seem all basic masks are scaled down 15% or so.
There is a small slit at the top and covered with a cheap plastic sheet.

FRONT

SIDE LEFT

BACK

SIDE RIGHT

ANGLE 1

ANGLE 2

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Who can resist a cool mask replica when it's under $80 right?

After purchasing my 6th mask, I got the idea that if I made the costumes to go with them,
I would be able to somewhat re-create part of the lucasfilm archives in my own home :)

One day I will repaint this helmet as it doesn't appear as blood red as in the films.