I have a Mountain Hardwear parka and I love it. But sometimes it is too much. A lighter weight jacket is useful.
I bought this looking toward a trip that will have NYC in April for a weekend and then a week in Colorado.
Did I mention all this with just a backpack?
So, one needs a lightweight jacket that folds into its own pocket.
This jacket fits the bill. It's nice and warm. The folded jacket is a little bigger than a legal envelope and as thick as a fist.
But still flexible, so fitting it into a backpack, rather than a case, is simple.

The green is bright, springlike and not pine forest. The pockets are a bit thin. I'm not planning on leaving keys in them.