Early synthetic fibers are man-made materials that are used in a variety of industries, such as clothing and textiles. Two of the most common early synthetic fibers are Orlon and RAYON. Orlon is an acrylic fiber that was developed in 1941 by DuPont and is known for its softness and warmth. RAYON is a cellulose-based fiber that was first produced in 1855 and is known for its strength and durability. Both fibers are still widely used today.