Mammut Ducan Backpack 24 (with rain cover) I used this for day hikes, but I'm selling it because I bought another backpack. It has a frame on the back, which prevents sweatiness. The first photo was taken with a Yamato Michi mat inside, so it looks elongated. There are some scuffs on the surface of the backpack from being placed down (photos 17 and 18). Please be aware of this before purchasing. It's possible to stay overnight in a mountain hut for 1-2 nights with compact packing. Size: 24L I plan to ship it in 2-3 days, but please note that it may take longer if I am on a mountain trip.