Dupioni & Shantung
Dupioni is a plainweave, crisp fabric with heavy slubbing. The slubbing is formed by thick and thin yarns going on the weft. It has a tight weave and a lustrous surface. It is best for formalwear and home decor.
Shantung is also a crisp fabric, but the slubbing is much lighter. It is sort of a cross between a taffeta and dupioni. It is also best for formalwear and home decor.
Both varieties are most popular in silk, although you will find in made from polyester as well.