Per the official website: This puffer is constructed with innovative fabric from Japan and contains 100% responsibly sourced goose down. Say hi to The Super Puff™ Shorty — the not-quite-cropped member of The Super Puff™ family. Engineered to deliver warmth to -20°C / -4°F, Shorty will keep you super warm where it counts. It's filled with 100% responsibly sourced, 700+ fill-power goose down that provides ultra-warm, lightweight insulation. This version is constructed with cliMATTE™ — water-repellent and wind-resistant ripstop fabric with a matte finish and a soft feel. It’s sourced from a Japanese mill that specializes in performance fabrics.