Chiffon is a type of fabric that is made from polyester, cotton, silk, nylon, or rayon. It is complete with a soft shine and a plain weave. It becomes very attractive when it is bring into the light. Chiffon is normally worn in formal wear, because it perfectly looks for a gown as it drapes finely and perks up a floaty look.
Why to pick chiffon dress?

Chiffon dress is perfect for all women- no matter the age, figure, and body shape. Its fabric can help look your body great because of its layering cloth. You can pick a style that has 2 to 3 layers including the bottom layer. The layers drape over the body as well as flick through the bumps of your body figure. Chiffon fabric can skim over your body shape that will create an ultimate slimming silhouette.
Whether you look for a chiffon fabric meant for summer dress, wedding dress, or prom dress, you can be sure that a nice dress will fit you agreeably. Chiffon dresses can be chic and fashionable even if you purchased it inexpensively. It is just that -you have to pick the dress that fits you like a princess in the party that you will be attending.
Chiffon Fabric
Silk chiffon is actually pricey. However, it shimmers and has glossy texture. It is made of natural fiber and surprisingly has a tough weight. This fabric is also used to create georgette that hangs down greatly.
Synthetic
cloth is the most common used by many for chiffon. It is relatively low-cost
compare to silk chiffon. The structure of the fabric is delicate as well that
should be taken cared of well to avoid damage. Synthetics are as challenging as
silk because they are glossy too. So when it comes to washing it, they are good
with hand wash.
Reference taken from here http://www.chiffondresses.org/