Best winter jacket. Babaton Duvet Puffer Colour: Black Size: small Engineered to deliver warmth to -30°C / -22°F, this is a full-length, classic-fit puffer with a wrap front, horizontal quilting and a cozy puff hood that keeps cold weather out. It's filled with 100% responsibly sourced, 700+ fill-power goose down that provides ultra-warm, lightweight insulation. It’s made with Soft Satin — water-repellent and windproof fabric with a soft, peachy feel. This fabric is sourced from a Japanese mill that specializes in performance fabrics. Water-repellent Fabric Windproof Fabric 700+ Goose Down Fill Warmest: -30°C / -22°F Responsible Down