Arc'teryx Cerium Jacket Features: Arato™ 15D 100% Recycled Dope Dye Nylon Arato™ 20D 100% Nylon with 60% Bio-Derived Material 850 Fill European White Goose Down RDS Down Coreloft™ Synthetic Insulation from 80% Recycled Polyester Down Composite Mapping™ bluesign Approved Material Articulated Patterning Full Length Front Zip Two Zippered Hand Pockets Internal Zippered Pocket Adjustable Hem Weight Approx 300g Cerium Jacket