If you’re concerned about accumulating dust, you have two options. Either purchase a garment rack that comes with a covering, or buy a cover for the rack you already have. Softer textiles, like knits, hold on to dust more easily than others. Jackets and coats are made from less porous materials and are typically used more often, so they’re less likely to get dusty. If you find items on your garment rack are getting dusty, perhaps reconsider what you keep on there, and transition to more frequently used clothes and accessories.