Flour, Sugar, Grain, Feed, etc.. Sack Cloth
Was very popular with rural/farm housewives, especially if the family didn't have much. Those sacks would be taken apart and the cloth used to run up everything from undergarments to clothing. Those who remember such things often say they would kill to find such fabric today. Sadly when the mills what produced such textiles shut down, the equipment was either sold off overseas or simply left to rot inside the shuttered buildings.
Many vintage laundry/housekeeping manuals in my stash give directions for "bleaching" sack fabric to remove the lettering/printing thus make the cloth better suited for clothing.