My Trail Company's 850-Fill Hyperlight Hooded Down Jacket is a high-end piece of kit with a 10D nylon shell. The jacket uses ethically sourced Goose Down from the Responsible Down Standard and is a semi-trim fit. The total weight for a large is 11 ounces, and the fill weight is 4.5 ounces, making this an extremeley warm puffy.
A full length zipper has an internal storm flap and a zipper garage for wind protection and comfort, there's an elastic cord hem adjustment, and elastic cuffs and hood. Two external zippered hanwarmer pockets keep your fingers toasty and an internal media pocket allows for more storage.