Tussah silk has high bulkiness, good warmth retention, and is as close-fitting and breathable as mulberry silk, but it is easy to deform, and it is easy to shrink or deform after making a quilt.
Because tussah silk has no pupa when cocooning, the oil of pupa will not attach to silk, and the oil content of tussah silk is very low, and the fiber is thicker than mulberry silk, so tussah silk is more durable and cheaper than mulberry silk.