Chiffon is a lightweight, balanced plain-woven sheer fabric, woven of alternate S- and Z-twist crepe (high-twist) yarns.The twist in the crepe yarns puckers the fabric slightly in both directions after weaving, giving it some stretch and a slightly rough feel.
Early chiffon was made purely from silk. In 1938, a nylon version of chiffon was invented, followed in 1958 with the creation of polyester chiffon, which became immensely popular due to its resilience and low cost. Under a magnifying glass, chiffon resembles a fine net or mesh, which gives it some transparency.
Chiffon is most commonly used in evening wear, especially as an overlay, for giving an elegant and floating appearance to the gown.