Directional fabrics include napped fabrics such as corduroy, velveteen, and flannel; plush fabrics such as fake fur; shiny fabrics such as taffeta and satin; and print fabrics which have one-way designs. Other fabrics which can be directional include some twill weave fabrics such as denim and gabardine, and knits such as jersey, single, or double knits which appear lighter or darker depending on the direction of the grain.
To prevent the garment from having a two-toned look or having its design running in two different directions, all pattern pieces must be laid out with their tops facing the same direction. Napped fabrics can be cut with the nap running either up or down. Nap running up gives a darker, richer look. Nap running down looks lighter and usually wears better. Plush fabrics look best with the nap running down. Shiny fabrics can be cut in whichever direction you prefer. One-way designs should be cut so that the design will be right side up when the garment is completed.