Incoming U.S. first lady Melania Trump and son Barron attend the presidential inauguration of President-elect Donald Trump at the U.S. Capitol in Washington, U.S., January 20, 2017. REUTERS/Carlos Barria.
Rayon is a manufactured fiber made from regenerated cellulose derived from plant materials such as bamboo. Rayon fabrics are very soft and breathable. As one of the worldâs oldest manufactured fibers, rayon is used for a variety of textiles including underwear.Most underwear manufacturers mix with rayon with other fabric blends to achieve a stretchable fit.ayon is a manufactured fiber made from regenerated cellulose derived from plant materials such as bamboo. Rayon fabrics are very soft and breathable. As one of the worldâs oldest manufactured fibers, rayon is used for a variety of textiles including underwear.
1 The distinguishing property of regular rayon is its low wet strength. 2  As a result, it becomes unstable and may stretch or shrink when wet. 3  Dry cleaning is usually recommended to preserve the appearance of fabrics made from this fiber. 4  If machine washed, untreated regular rayon can shrink as much as 10 percent.