I'm selling this because I haven't used it since I bought it a few years ago. I have two in stock, so I can accommodate a set purchase. Outdoor bedding: Sleeping bag/schlafsack Type of sleeping bag: Mummy type Season: All season ■ This is a sleeping bag jointly planned by NANGA and Yamakei. ■ By using the most common color (black) when manufacturing NANGA's Auroratex products, mass ordering, and a single color, we have significantly reduced manufacturing costs, achieving a significant price reduction while maintaining a high level of waterproof and breathable functionality. ■ The outer fabric uses Auroratex (porous polyurethane waterproof coating material), so you can use it directly without a sleeping bag cover. ■ About Auroratex: The outer fabric material is a special porous polyurethane waterproof coating material. ■ This material solves the problem of reduced vapor permeability when increasing waterproofness at a high level. It is made by containing ultrafine particles in the polyurethane resin, forming numerous micropores of 0.1um (1 micron = 1/1000mm) or less in the coating film. ■ 2-layer fabric with a water pressure resistance of 20000m Regular size: Maximum length 210cm x Maximum shoulder width 80cm (up to 178cm tall) Fabric: Outer fabric: 40dn Auroratex / Inner fabric: 40dn nylon, Internal structure: Box structure, Built-in shoulder warmer, Down fill: 900g (This product uses Spanish down 90-10% washed domestically.) Fill power: 760FP Total weight: 1550g, Storage size: φ22 x 34cm [Comfort temperature] -10℃ [Lower limit temperature] -19℃ Color: Black 【Maintenance method】 After use, you can dry it in the shade to remove moisture and maintain the fluffiness of the down. Avoid drying in direct sunlight as it may adversely affect the fabric (synthetic fiber). If you are concerned about the smell of new down (feathers), airing it out as much as possible when not in use will help the odor dissipate relatively quickly.