Thank you for viewing. This is a listing for a set of two mont-bell Burrow Bag #2 sleeping bags, with left and right zippers. When the zippers are connected, they become a double size! Purchased from the official shop about 25 years ago. Used frequently for 7-8 years. They have been hand-washed several times. There are no frays or tears on the main body, but as they are old and have been stored for a long time, there is also a musty smell. We recommend washing them before use. *There is a torn area on the outside of the left zipper head (see photo 10). *Photo 11 shows the bags connected. *The left zipper is in poor condition, so it can be sold separately. *They will be packed after being removed from the storage bags. *Please understand that these are used items that have been stored by an individual before purchasing. *Please refrain from claims or returns after evaluation. The following is an explanation by ChatGPT (for your reference): ◆ Burrow Bag #2 (around 2000) •Comfortable temperature (approximate): around 0-3°C •Usable temperature (lower limit): around -5 to -7°C •Positioning: A "slightly warmer" model that can be used in the highlands in spring to autumn, and also for winter camping on flat ground. •Filling: At the time, mont-bell's original synthetic fiber filling (Excelloft initial type). •Features: Because it is synthetic fiber and not down, it is resistant to getting wet and condensation, and is easy to handle for beginners and family camping. ◆ Practical notes (for the 2000 model) 1. Deterioration over time Since it has been over 20 years, the loft of the filling has decreased, and the comfortable temperature at the time cannot be maintained. In reality, it is safer to use it at "5-7°C or higher". 2. Differences from current models The current #2 (Seamless Burrow Bag #2) is advertised as having a comfortable temperature of 0°C and a lower limit of -6°C, but the 2000 model is slightly larger and heavier than the current model, and the heat retention efficiency is also slightly inferior. In summary, the **Burrow Bag #2 around 2000 can be considered to have a "comfortable temperature of around 0-3°C and a lower limit of around -5 to -7°C"**. However, if you are using it now, it is safe to use it with a comfortable temperature of +5°C or so as a guide.