Snapsack.
A tanned hide, goods laid down the middle lengthwise, leave about 8-10 inches extra at either end of the line of goods. Roll it all up open ended burrito style and tie both ends shut. The rope or cordage or leather thong slips over the shoulder and the hide makes a U shaped tube of gear. If you got a lot of gear stuffed in the snapsack, you can lash a thong or two around to keep your burrito from leaking.