Description Built to handle a range of environments - cold ones - the Thorium delivers serious warmth. Packed with 750 fill-power Responsible Down Standard certified grey goose down, it offers outstanding thermal performance for its weight. Down Composite Mapping(TM) strategically places Coreloft(TM) synthetic insulation in areas prone to moisture, the light, durable Arato(TM) 30 nylon shell has a DWR treatment for water repellency, a bio-derived liner reduces petroleum use, and the insulated adjustable StormHood(TM) adds even more warmth. Features & Specs Technical features Moisture-resistant outer face fabric Breathable Lightweight Compressible and packable Wind resistant Construction Down Composite Mapping(TM) strategically places synthetic insulation in areas where moisture may buildup and down in areas for maximum warmth 750 fill down for premium warmth Down Contour Construction(TM) allows the down to form to the body for more efficient thermal performance Downproof 20D plant-based Arato(TM) liner is exceptionally lightweight and reduces petroleum use Cuff & Sleeves configuration Stretchy cuffs Pocket configuration Chest pocket with zip Two hand pockets with zippers Two internal dump pockets Integrated features Includes stuff sack for compact transport Materials & Care Materials Down Insulation: 750 fill European grey goose down - 100% Grey Goose Down (minimum 90% down) Lining: 10D x 20D Ripstop - 100% Nylon Synthetic Insulation: Coreloft(TM) 80 (80 g/m^2) - 100% Polyester Body: 30D Nylon Mini-rip with AC Coating, 53gsm - 100% Nylon Origin of fabric: JAPAN Origin of dyeing: JAPAN May release plastic microfibres into the environment when washing