Viscose, also known as Rayon, is a man-made, plant derived ingredients based fabric. It is very drapey, breathable, lightweight, soft to the touch with a silky feel and matt finish providing a luxurious feel. Widely used for garments requiring drape such as dresses, skirts, trousers, blouses and tops.
Similar to Lawn sew with a fine size machine needle and short stitch length of 2.5 mm. I normally use Gutermann Sew-All polyester thread for machine sewing.