Western Mountaineering Hooded Flash Jacket - Men's Black Extra Large. We designed this jacket to provide sufficient warmth for the less extreme climate ranges with the least amount of weight. The shell fabric is a tightly woven material that weighs only 0.9 oz. per square yard There are no cordlocks on this garment because we have finished the hood and waist with lightweight elastic piping to seal out the cold. The pockets are insulated with down on both sides and the full zipper has insulated draft protection. This jacket is both comfortable and functional. It is extremely lightweight and has just enough warmth yet its not too bulky. Specifications for Western Mountaineering Hooded Flash Jacket - Men's: Manufacturer: Western Mountaineering Apparel Fit: Regular Gender: Male Age Group: Adults Application: Mountaineering Fabric/Material: 20D Nylon Micro Ripstop Weight: 10.3 oz Jacket Style: Heavyweight Down Insulated Apparel Weight: Heavyweight Insulation: 850 Fill Goose Down Insulation Weight: 3 Features of Western Mountaineering Hooded Flash Jacket - Men's 850 Plus Fill Power Goose Down Insulated hood Down Filled Front Pockets YKK Lightweight Reversed Coil Zipper Lightweight 0.9 oz. Dot-Ripstop Nylon Shell Fabric Down Filled Draft Tube Behind Zipper Available In Mens SM-XL and Womens XS-LG Average Total Weight 10.25 oz. Average Fill Weight 3 oz. Package Contents: Western Mountaineering Hooded Flash Jacket - Men's Western Mountaineering FHJKMXLBK: Hooded Flash Jacket - Men's Black Extra Large