Purchasing a mouthguard is essential if you plan on doing any sparring. They are available online and from viable manufacturers of boxing and Muay Thai equipment. Several features standout as most important when purchasing your mouthgear and they include comfort, fit and how well it absorbs shock. You also want to make certain you can breathe effectively when it is in place. A good fit means it is secured firmly and not at all loose. The Shock Doctor Power Ultra Mouthguard is a great option.