Whatever is best for your dog. Generally, a traditional buckle collar collar (the type your dog probably wears around the house) will work great. We prefer “belt buckle” style collars as opposed to “quick-release” types, as they tend to stay truer to size and don’t run the risk of breaking open unexpectedly like quick release collars sometimes do. A “training collar” (such as a slip chain or prong collar) is not necessary but may be recommended in some cases. After assessing your dog, your goals, and your physical capability, we can offer a recommendation and help you to properly fit and use the collar.