organza

organza A thin, stiff, sheer fabric that is made from silk or a synthetic yarn, which resembles organdy, and is used in dressmaking.
2004 Monika Fagerholm, Translator Kathleen Tucker,The American Girl, Other Press 2009, p.202:

But Pinky, at night, toward the morning, to become a woman, was that it? How the white legs would glow against the fire-colored chiffon and bright pink organza, Pinky's white white legs.