you want a down puffer jacket FTW.
I *did* have a loverly mountain equipment one, was £220 I got it for £105. was extremely warm on freezing and sub zero mornings for walking the dog.
but no use for wet/damp weather of course.
SO what did I do, left it in car when I walked dog because it was raining, and left one of the doors open.
came back several hours later and £500 worth of cd's was still there, £250 HU was still there, various bits and pieces and my wallet was still there.
ME jacket was gone
as was the dogs spare lead.
tossers. that was the reason I spent 3days fitting and ELX wiring loom and central locking, as I kept forgetting to lock doors