BZH
the point is - if any comination of clothes is layering, then no matter what you wear, you are layering. So what is not layering if layering isn't the answer??? Like we wouldn't talk about our right hand if we didn't also have a left hand, it would just be The Hand. So why tell people its so important when we can't even seem to define it beyond "put on reasonable layers for the weather" and there the word is used in the definition.

As far as semantics go, to me "layering" means bringing too many thin heavy layers rather than clthing specific to the job at hand. And no I do not layer even though I wear layers - jeez.
Jim