Originally Posted by
Mr Beer
I would not have anyone wearing 4" inch thick leather armour unless significant magics are involved; even then I don't see why they wouldn't wear something of normal thickness and magic that instead. It's something you might see on seige weapons or war elephants or something.
Now if I had to run something with 4" thick walrus leather armour, I would make it all enclosing and magically bio-mechanically enhanced. Yes, it would be a gruesomely fleshy sort of power armour. The elite native troops don it and acquire Walrus Power and run around knocking over lesser warriors like ninepins.