In reply to sarahkeast:
> It is the Pemby by TNF.
I don't think it is, it's down filled not primaloft and called the Verto. I've seen ads for them in US magazines I think. They don't seem to sell them outside of the US yet
http://www.thenorthface.com/webapp/wcs/stores/servlet/ProductDisplay?partNu... and it will probably be more expensive than primaloft one!
I'm reviewing the Jöttnar Alfar currently, and have reviewed the Marmot Variant in the past
http://www.ukclimbing.com/gear/review.php?id=4447 There are strengths and weaknesses to hybrid jackets like this I think, and they do tend to be pretty pricey. Like some one said, arguably a body warmer and a micro fleece will work as well, possibly warmer, be more flexible (you've two things!) and could cost less. If you want a thin, very light down vest check out Uniqlo!
http://www.uniqlo.com/uk/store/goods/078797 I've got the mens jacket and its great for the money. Much better down than in many similar looking high street brand "down" (feather often actually) jackets and vests. I also got a down vest that is super light from Decathlon - on sale in summer for €30 so a bit of a bargain! Again good quality down for something so cheap.