Aurora 450DX (All Black) Usable limit temperature: -5°C Retail price: 34,800 yen NANGA Storage Mesh Bag, unused Retail price: 1,760 yen Purchased in January 2025, but the size didn't fit, so I only used it a few times. I also purchased the storage mesh bag, but I have never used it. I am from Kyushu, but I used it in Hokkaido in the autumn and Shikoku in the middle of winter, and it worked fine down to about -3°C. (Individual differences apply)