Designed for the ultimate custom fit and engineered for maximum performance, choose this Adult-sized Impact Mouthguard Starter Kit with Guard, Cobalt Blue Putty, and Case from Zone. The Impact is a patented combination of medical-grade EVA and a proprietary blend of PVS material. Impact uses a patented, zero-pain technology, making the old-school method of boiling plastic a thing of the past. Traditionally, athletes would make multiple visits to the dentist office and spend hundreds of dollars for custom-fitted mouth protection. Zone figured out a way to keep you on the field and out of the dentist chair while offering professional-level collision and concussion protection and a customized fit at a fraction of the price. It has also been proved that the Zone Mouthguard can help increase performance by properly aligning the jaw posture, increasing muscular strength for all athletes. Created with MORA (Mandibular Orthopedic Repositioning Appliance) Technology for better balance, flexibility, and more air intake, scientific studies have shown there's a real relationship between increased athletic performance and MORA. The Zone Impact Mouthguard brings that scientific technology to athletes everywhere, naturally aligning your jaw to protect against impact and improve your athletic performance.