Custom-built Under Armour Performance Mouthwear, athletes in any sport — from football to golf to hockey — can capitalize on innovation that makes you stronger, faster and better. Whether you need protection in contact sports or you just want to improve your game, Under Armour Performance MouthwearTM, with ArmourBiteTM Technology, gives every athlete an edge. YOUR JAW IS THE KEY TO UNLOCK THE POWER YOU NEVER KNEW WAS THERE.