Cold travel needs a jacket that disappears into a pocket when you go indoors. Outdoor Research lists the Helium Down Hoodie at $350, with 800-fill down and a 20D recycled nylon shell. The page calls out lightweight warmth and packability.
Toray Dermizax 2.75L overlays cover zones the maker flags for snow and moisture.
Shortlist reason: a down hoodie with fill power and a fabric weight printed on the page.