Update:
We are currently experiencing Polar Vortex, so here are the updates;

1. There is no longer Cold-Spots with this jacket, given the 100% Solarcore coverage. In blustery cold condition, I can feel some coldness by the Armpit zippers.
2. Wearing tight baseliners will create air gap that will leak out the warm air. Middle and/or bottom flexible drawstrings are needed.
3. I wish the collar were two inches higher for better face protection.