Originally Posted by
jefnvk
I don't think I could fit that all in a 15L backpack, let alone an odd shaped saddlebag, especially so with even a small sleeping bag. This is also assuming you have no issue tossing a muddy and wet tarp and rope and stakes in the same place as your sleeping gear or clothes. I've got a 10L, it is a chore to get two light raincoats, some snacks, and an off-bike hat in it.
Maybe 15L is more voluminous in the dimension the OP lives is than it is in the dimension the rest of us live in. (See immediately above.)