Velvet pile is created by warp or vertical yarns and velveteen pile is created by weft or fill yarns. Velvet can be made from several different kinds of fibers, traditionally, the most expensive of which is silk. Much of the velvet sold today as "silk velvet" is actually a mix of rayon and silk.Silk velvet is a unique, soft and shiny fabric. Silk velvet is considered as one of the most expensive fabrics ever made. ... this is the fiber used for the finest velvets because it makes their surface sheeny and their drapery extremely soft.Velvet is a luxurious pile fabric woven with an extra set of warp yarns, resulting in a rich, plush surface. Silk velvets tend to have a softerhand and more drape than those made from other fibres. They have a luster and with a soft hand. They are attractive to the touch as well as the sight and are used for evening wear, bridal wear, historical and stage costumes, as well as for drapery, and pillows. Velvet is a smooth, delicate fabric. The fabric has a shimmery surface due to its special weaving technique and quality of yarns.