In reply to chris20:
My wife has a Patagonia Winter Sun jacket and it is fantastic.
Primaloft insulation but also waterproof so she uses it for absolutely everything.
Got it cheap, £45 from that well known auction site from the States and with import charges and post it came to about £80.
She is a ladies size large which is a 12-14.
Having also had the blokes version for winter climbing, I can't rate it highly enough, really is an excellent piece of kit.
Other very similar jacket is the North Face Makalu, also excellent.
Hope this helps, Den