A fine, elastic cotton yarn produced on a mule spinning frame rather than a throstle or ring frame. The mule carriage draws and twists the roving in one motion before winding it onto a cop, creating a softer and more uniform thread than continuous spinning methods. It was traditionally prized for high-quality woven goods.
Heard on the job
We need a softer hand for this weft, so see if you can source a true mule twist.