This is a winter mummy-type sleeping bag from wolfyok outdoors. It is designed to withstand temperatures as low as -18°C and offers excellent cold protection and heat retention. 【Condition】 ・Unused ・Only the bag has been opened; the main body is unopened. 【Features】 ・Mummy type for high heat retention ・Allows both hands to be free for smartphone use and reading ・230T waterproof material for simple water resistance ・All-season対応 (All-season compatible) ・Recommended for camping, mountaineering, car camping, and disaster preparedness/evacuation ・Comes with a storage bag for compact storage 【Uses】 Can be widely used as an outdoor, camping, or disaster preparedness sleeping bag. ____ Brand: wolfyok outdoors Color: Orange Occupancy: 1 person Shape: Mummy Season: All Season Temperature Rating: Comfortable use temperature: -18°C to 25°C 【Temperature Range】Recommended use temperature: -18°C to 25°C. Minimum use temperature: -18°C. Perceived temperature varies from person to person and also depends on usage conditions. Those who feel the cold easily should choose a model with high heat retention, while those who feel hot easily should choose a model with low heat retention for comfort. When using below 0°C, it is recommended to wear outerwear and underwear inside the sleeping bag. The spacious design makes it easy for people with larger builds to enter comfortably and allows for smooth turning over. 【High Heat Retention】Size when in use: Approximately 220cm x 50-80cm, Size when stored: Approximately 37*9.5cm. Usable by both men and women approximately 150-190cm tall. It is not likely to feel cramped even for those with larger builds or those who frequently turn over in their sleep, allowing for comfortable sleep. 【Heat Retention UP & Detailed Design】Uses hollow fiber with excellent heat retention for the filling, preventing body heat from escaping and allowing for comfortable sleep. The hood part can close the collar with a contraction cord and Velcro, preventing cold air and providing firm heat retention.