Adopting a dog can be a lot of fun. It certainly encourages you to become more active. Thanks to the Mudder, you can run with your dog. This is a hands-free dog leash that fits waists up to 42 inch. The bungee works for dogs from 30 to 100 lbs. The Mudder is made using reflective thread. Like what you see? The Mudder sets you back under $15.