Mryosi
Lord of Altera
Do you have any source to back it up?Armor had curvature to it that helps deflect arrows off the surface of the armor.
I, personally, find it hard to believe that it would make much of a difference. (I have no doubt that a slow arrow would be deflected, though not in a full speed, in my opinion)
And there was accurate three-layers cloth padding to the plate.