Patagonia mens Fitz Roy Down Parka 8457 100% nylon Lightweight and durable 100% nylon Pertex Quantum fabrics throughout; a high-sheen Pertex Quantum Y yarn fabric on the hood, shoulders and arms has interlocking Y-shaped nylon fibers to enhance DWR (durable water repellent) performance; fabrics have a DWR finish Helmet-compatible, baffled hood has a single-pull adjustment and an internal heat-locking, high-loft chamber on back of neck Two high handwarmer pockets and exterior left chest pocket feature zipper garages and insulated entries to eliminate drafts; one giant interior drop-in stretch-mesh pocket holds gloves and other essentials Materials: Shell - 100% nylon Pertex Quantum / Insulation - 100% 800-fill Traceable Down