The Heritage Cotton Down Jacket is a lightweight insulated layer for cold weather, combining a cotton shell (127.5 g) with premium down fill for reliable warmth at minimal weight. The cotton fabric undergoes a special washing process that replicates the authentic character and feel of archival Filson pieces. The two-way front zipper allows flexible fit adjustment when sitting, bending, or on the move. Front pockets are lined with a quick-drying synthetic insulation to keep hands warm while reducing front bulk. Rib-knit collar and cuffs help retain heat, while the clean hem creates a clear silhouette and makes layering effortless. Regular fit – true to size. Outer: 100% cotton (127.5 g) with special wash Insulation: Duck down (650 fill power) Lining: Polyester Pocket insulation: Polyester Two-way front zip Rib-knit collar and cuffs Clean hem for easy layering