Yes, Gele is typically made from stiff fabric that holds shape when tied, per OED. Aṣọ Òkè is traditional and classic, but not exclusive. University of Georgia West African Textiles notes Damask (imported, stiff, patterned) became popular in Nigeria in the late 1960s–early 1970s and was used for Gele. Other options include Sego, brocade, and more. The artistry shines in the styles either way.