Used vintage cotton feedsack fabric - this was sewn into a laundry bag or pillow case, 20" wide x 28" long. Fabric has some fading, spots, small holes from use, or its life as a sack.
But this has a really great 'arty' print I've never seen before. And I love the colors - red, blue, mid-century pickup truck green! This would be good material for quilting, or your next vintage upcycle project.