I was wondering what the armor of Juggernaut is made of. From some comics I read (no idea which universe), and from the movies, it appears to be some kind of thick, heavy metal. But I would be surprised that it is of a regular alloy, like steel, as that would wear far too rapidly.
I'm also unknown to its origins. Did he always have that cumbersome metal 'dome' over his head/shoulders ? Is it possibly magical ?
Disclaimer: I'm mostly familiar with the movies' canon (as far as you can call it that re. the movies), and to a very limited extent, the comics. Doesn't matter in what universe the answer comes from.