DayZ field wiki · Gear
Improvised backpack
Burlap and hops
Short answer
A bag from junk. Ugly, useful, the difference between a can and a future.
Also: improvised bag · burlap backpack
How it works
Improvised bags craft from burlap and hops or similar junk. Slots are slots.
What to do
Make one. Swap when a real bag shows.
Don't
Don't dump it full of ruined pistols.