GregMay – Member
If you want packable look at anything with Primaloft 1 – so the Montane Prism or Patagonia Nanopuff.
I love mine so much I just bought another (Macpac). Use it all the time. Also got a Mammut winter thickness, which is also great. Not sure for me whether a Primaloft 1 jacket would cut the mustard on a wild camp tho, unless it was mid summer.
To OP
Personally, if weight and pack size is critical, then I’d still go with a down jacket and just make sure it doesn’t get wet. TNF and Rab you listed are good and add Alpkit, Mountain Equipment. PHD use the best quality down and materials, but you pay for it.
In synthetic, Montane if you’re on a budget, Mountain Equipment Fitzroy is often recommended by climbers (ME Compressor is their thinner version). Pretty much anything using Primaloft.