LLBean Mens Ultralight 850 Down Jacket. Retail value $200-230 Insulation: 850-fill power DownTek™ water-repellent goose down, which stays warm even when wet and dries 66% faster than untreated down. Design & Shell Material:Narrowly quilted, Durable Pertex Quantum nylon shell that is windproof and water-resistant. Temperature Rating: Rated for temperatures from +30°F to -20°F. Storage: Includes two zippered hand pockets and one zippered chest pocket with a media port. Packability: The entire jacket can be stowed into its own left-side pocket for easy travel.