Under ArmourOur office offers two types of Under Armour performance mouth pieces. The ArmourBite® Custom Mouthpiece is a slim mouthpiece that optimizes the position of the jaw so that when worn during athletic activity, it improves strength, it improves endurance oxygen intake and recovery, and it reduces athletic stress, allowing athletes to perform better. The ArmourBite® Custom Mouthguard is indicated for contact sports. It offers better fit than other mouthguards, comfort and superior impact protection, and it can also improve athletic performance.