Looking for a lightweight and warm kids down jacket. Size 5 ideal, probably can work with Size 4 or 6. (My daughter is 48 inches and 38 lbs if that helps).

I can't stomach spending nearly $100 for a new Patagonia jacket; but they are one of the few vendors who sell reasonably light kids parka.

Bought a 650 fp marmot down one off Ebay but jeez, it's almost a pound, packs to the size of a large watermelon (why are tiny kids clothes heavier than grown up clothes!) and at sz 6-7 it was really way too big for her.

Looking for something warmer than e.g. a nanopuff but doesn't need to be expedition weight; we likely won't be in temps below freezing but she is a rail and gets cold very easily.