Velour A term loosely applied to all types of fabrics with a nap or cut pile on one side. Specifically, it is a cut pile fabric similar to regular velvet but with a higher pile.
Velvet A pile fabric with a clipped nap. Before clipping, the nap is a loop as found in frieze or boucle. Velvet was introduced during the Renaissance in Italy and Spain and later moved to France. Designs can be woven into it. They can also be made by cutting the velvet nap into different lengths or by cutting different lengths over a pattern.
Vinyl Upholstery A polyvinyl chloride film with a fabric backing.