Purchased around 2022, this item has been used twice and then stored in a dedicated sleeping bag bag in a dark place. It was not stored in a compression bag, so the down condition is believed to be fine. However, because of this, it has taken up space, so I have decided to sell it. This item is no longer in production, so I think it's a good item for those who want to reduce weight and make things more compact. If used with a sleeping bag cover like SOL, or a sleeping bag liner like Cocoon or SeaToSummit, you can sleep soundly even in environments colder than the specified lower limit temperature. Product Description: A water-resistant model with high-performance down is now available. Lightweight and compact model with a single quilt structure. High-quality, high-performance down (770FP) with super-water-repellent treatment applied to DX feathers overcomes the biggest weakness: water damage. Compared to the water-resistant synthetic fiber sleeping bags that have been chosen until now, it is lighter, smaller, and warmer. The time it takes to expand with strong resilience is also shortened, allowing you to protect yourself from the cold more quickly. Fabric: 15dn nylon sire water-repellent treatment Internal structure: Single quilt structure ・A very simple sewing method that reduces weight. By sewing the outer and inner fabrics directly together, it is lightweight and compact. This structure is used in summer types, etc. Fill power: European duck down 90-10% (770FP) Super water-repellent treatment Down amount: 280g Size: Regular Storage size: φ13×20cm Total weight: 550g Comfortable usage temperature/Lower limit temperature: 8℃ / 4℃：8℃ / 4℃ The condition of scratches and stains is also believed to be good. Please check the attached images for details. UDD BAG 280DX Short (Red) Brand: NANGA UDD BAG Color: Red系 Mummy type sleeping bag total weight (g): 550 g Fill power (FP): 770 FP Mummy type sleeping bag filling material: Down Mummy type sleeping bag function: Water repellent