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.
The movement of air from one side of the fabric to the other to keep the wearer comfortable. The breathability rating is typically expressed in a gram measurement of how much vapor a square meter (G/M2) of fabric will allow to pass in a 24-hour period (typically, 1,000G/M2 to 10,000000G/M2).