Montbell sleeping bag. Down Hugger 800 Women's #3. Model number: #1121370 (old model) Purchased in 2020, but never used, and has been stored at home in a new, unused condition. It has never been taken out of the included storage bag since purchase. The model number is an old model. Please check the manufacturer's official information for performance and usage. Although it is an unused item, it has been stored at home, so I would like to sell it to someone who understands this.