That's about as personal as a pair of favorite boots.
I've started using these in Virginia, in warm spring and summer hunts, and down to just at freezing temps:
http://www.basspro.com/Under-Armour...hvarAID=shopping_googleproductextensionsThey pack into nothing, I can pull it up over my ears and not lose hearing ability, and it breaths. I find that I can fog my optics if I have full face coverage, so I like these for the mesh.
I use the Scentblocker full face if it's cold and blowing.