Mummy-type sleeping bag designed for extreme cold, usable down to -34°C. - Brand: Bears Rock - Temperature Rating: -34°C - Type: Mummy型 (Mummy type) - Storage Size: Compact storage possible - Features: Feeling of being enveloped - Color: All Black I bought this intending to use it, and also for emergencies, but I only got inside for a few minutes to try it out and then stored it in the closet. I'm selling it because I want to replace it with a thinner, easier-to-use one. I bought it for around 15,000 yen, but it seems to be selling for around 17,000 yen on the website now. I'd like to sell it to someone who is looking for one.