Is this parka warm enough for below-freezing weather?

Down fill plus the long parka cut makes it a serious winter coat. It handles freezing commutes and standing outdoors well, especially layered over a sweater.

How does it compare with a short puffer jacket?

It covers more of the body and holds more fill, so it is warmer than a hip-length puffer. The trade-off is more bulk and less freedom of movement.

ColdGear targets cold and wet conditions, but a down parka is not a sealed rain shell. In steady rain, expect the outer fabric to wet out before a dedicated waterproof shell would.

How should I care for the down fill?

Wash it sparingly with a down-specific detergent and tumble dry low with dryer balls to restore loft. Avoid fabric softener and long storage compressed.

What is the fit like?

It is cut as a long parka meant to layer over midlayers, so it runs roomier than a fitted jacket. Those between sizes who want a close fit may prefer the smaller one.