Is this jacket warm enough for winter?

Yes. It is filled with down and feathers and quilted to hold the fill in place, which is the same construction used in serious cold-weather puffers. It handles cold dry days well; for heavy rain, a shell over it is better.

How does it compare with a technical puffer like a North Face?

The Dior is warmer-looking and far more of a fashion piece, with the monogram finish and tailored cut. Technical puffers beat it on weatherproofing, packability and easy care. Choose the Dior for style, the technical brand for mountain use.

What is the fit like?

It is a men's puffer with a quilted, filled body, so it runs bulky by nature. Layering a sweater underneath is realistic; a slim fit is not what this jacket is for.

How should I care for a down-filled designer puffer?

Down fill and monogram fabric are best handled by a specialist cleaner rather than a home machine wash. Store it loosely hung rather than compressed so the down keeps its loft.