Nippin (Der7.Grad) down sleeping bag. This was purchased at Nippon in Kanda, along with a Messner tent, and was an expensive sleeping bag. It's a down sleeping bag that can be used from the high mountains in summer to the low mountains in winter. Made by Messner Der7.GRAD, it features a side zipper and uses high-quality goose down. It has been used about 5 or 6 times and has been stored in a tea box when spread out, so it's in good condition. Although it's an old item, the down still has good loft, and you can tell that high-quality down was used. There are no strange stains. The color scheme seems to go well with vintage tents. Nanga, Montbell, ISUKA