Mulberry silk is the finest of type of silk. The mulberry thread’s triangular, prism-like structure allows light to be refracted off its surface at incoming angles, which gives Mulberry silk its lustrous and shimmering appearance of varying colors. Mulberry silk is obtained from the domesticated moth Bombyx mori (Bombycidae) reared in captivity and cultivated on plantations. This moth feeds only on the leaves of the Mulberry tree from which the name of this variety of silk is derived. Mulberry is a fast-growing deciduous woody perennial plant. Silk is obtained from the silken shell spun by the silkworm larvae that serves as a protective covering during its pupal stage of existence. To create one 2 pound silk sari, approximately 3000 silkworms must eat 229 pounds of mulberry leaves.

India is the second largest producer of Mulberry silk after China. The majority of Mulberry silk producing areas are in southern India with the exception of the northern state of Kashmir which is famous for its fine silk fabrics.