Quote Originally Posted by tuggyne View Post
Ironically, it's probably easier to precisely cut a thin strip of cloth than to slice through steel without going too far; you can use less force and more control, and it's softer than the skull rather than harder.

(I make no attempt to justify just how easy it actually is, of course.)
My point was more that a helmet generally includes an arming-cap of some sort, which provides at least a slight buffer between helmet and head, whereas a headband fits snugly against the wearer's fragile, exposed scalp.