This product is made with Biothane a polyester webbing with a TPU or PVC. It is durable, cleanable, stronger, and easier to maintain than leather. Biothane is available in a variety of different colors. If your leashes become dirty from everyday use simply get a bucket or sink of warm water, you can use a mild detergent or dish soap and a toothbrush to scrub the hardware and any hard to get spots. After cleaning rinse in warm water and leave out to dry on a towel. When purchasing one of our products Helper Dog Boutique isn't responsible for any misuse. For custom orders or questions please email us for options and pricing at info@helperdogboutique.com