Carry with your freeel many more things
of what you can imagine
You do not need to carry a backpack, or load your back with unnecessary weight, or overwhelm you because you can not fit more into it. The perfect solution is this extendable saddlebag for your electric bike, which is compacted if it is empty but when deployed it is capable of storing much more than you imagine.
Let the Freeel Z03 do the work for you and carry the load you need each day. And just worry about enjoying the tour.