He wears the slave rags and chains that he wore before and during his escape. When asked about it he says, "I am still a prisoner of that society until I end their rain over all mutants. I am not worthy to wear anything put prison rags until their destruction, and even then I will where these rags until I die." which means he wears no other armor.
I'm getting a mental image of a hillfolk with gigantism... Any close to your mental image of him?