Nylon is a general purpose thread designed for applications that require a strong, inexpensive, easy sewing thread with a glossy finish. It is the first choice for upholstery, leatherwork, auto interiors, banners and flags, sports gear, dog collars, horse saddles and tack, knife sheaths, gun holsters, fishing lures, and brief cases. Lighter weight sizes are often used for sewing garments made from nylon or other shiny fabrics.