I'm upgrading a few of my clothing layers this season. I will be wearing UA Cold Gear as my base, and ASAT 3D for my outer layer (uninsulated obviously). I'm not sure what to get for my mid layer (mostly for mid-late fall season). I'm thinking a good set of fleece top and bottom. Cabela's SuperSlam fleece is on major clearance right now, and I'm eying that up.

Any other recommendations?

Do those of you who where an insulated vest as a mid-layer feel is sufficient for warmth while freeing up movement?