1950s - 60s vintage 'camp blanket', so soft. This is an cotton / rayon or cotton / acrylic, blend, I think. No label or tag on this one. It measures about 76" x 68" overall.
This has a few spots, and browning on the fold lines - though the fabric is soft and thick yet, and doesn't show a lot of wear except at the blanket binding which is worn and coming loose.