ThermoPact MouthShield’s unique triple-layer design and patent-pending foam insert absorbs more impact energy than the leading over-the-counter, boil-and-bite mouthguard, providing extra protection for teeth and jaws.The mouthguard also features patent-pending Thermo-Technology material, which changes color when an athlete’s oral temperature reaches 102°. This unique feature will enable coaches, trainers, parents, and athletes to head off and hopefully avoid heat-related dangers.