We recommend using Tumi Leather Conditioner to clean, protect and polish our napa leather products. However, Tumi Leather Conditioner is not recommended for all leather types including suede, nubuck, exotic leathers and our matte finish Emeline leather. It is always best to test the product on a small section of leather, such as the inside of a bag or pocket, before using it on the entire bag. The best way to protect your new Tumi leather bag is to polish it completely before use.