Interesting new jackets from purveyor of fine, hand-crafted and stupid expensive British down makers, PHD. Both use some sort of new ultralight coated shell fabric they call Ultrashell. I would expect it to be similar to an ultralight version of Pertex Endurance, with a monolithic PU coating and HH of 500 to 1000.
"Sigma" primaloft jacket, 330g and claims to have 100gsm primaloft but I think that's a typo. Looks more like 60gsm. They rate it to -5C.
http://www.phdesigns.co.uk/product_info.php?cat=110&products_id=116
"Ultra" down jacket, rated to -5C as well but only 235g. Only 5g heavier than the Ultra pullover that Will Rietveld favourably reviewed but with a much more water resistant shell.
http://www.phdesigns.co.uk/product_info.php?cat=110&products_id=373
