i think you could make this with tunisian. when it gets the the split, you could keep working half the stitches until both halves are long enough and then start stitching across the entire piece again at the other end.
Ive pinned this Crocheted Buttoned Wrap pattern before. Love these colours. Buttoned wrap made with soft yarn on colors of Autumn with a large brown button. Yarn is soft medium weight acrylic. Wrap measures 56 inches long and 17 inches wide