Here’s the garment bag from Filson’s new ballistic nylon/leather-trimmed Passage series:
It’s a Filson, but - alas - is not made in Seattle — imported. The price is made in the USA though ($325). No word on the weight, but the size is carry-on friendly: (Open) 22” W x 44” H x 2” D. (Closed) 22” W x 14” H x 7” D.