Dog Gone Smart’s classic style bedding and apparel are finished with an invisible Nanotechnology called Repelz-it™. Repelz-It prevents liquids, dirt and natural oil in your pet’s coat from sticking to Dog Gone Smart fabrics. Unlike other stain-resistant technologies on the market, Dog Gone Smart products using Repelz-It Nanotechnology are highly abrasion resistant and remain functional for years of use. Repelz-It also uses a safe, state-of-the-art bacteriostatic, which inhibits the spread of certain odor-causing pathogens. Our fabrics can be machine-washed and dried, though the Repelz-It coating means you won’t have to do it as often.