I just got my golite bitterroot jacket today. 13oz jacket and 150 grams of it are down. It is more beautiful than my kelvinator and fitzroy. It doesn't feel as warm as my fitzroy but it is truly the best jacket out there for the price ,weight and amount of down in it. It's definitely ultralight as well. It's also 150 bucks. A dollar a gram of 850 down. I'll post some pics later.