>>3051476You don't need anything fancy desu, doesn't take any space either, just make sure it's easy to reach for when the weather turns. Downside of the ETRSi is if you fall on it, you will break.
Also I don't know how long you are going but really try to sit out until sunset on top of the mountain. Mountain sunsets are epic.
Pic sorta related, French Alps, god knows which film, probably superia, Nikon F, 50mm