The Shock Doctor Nano double Fight mouthguard is a double Arch, Low Profile Choice that amplifies protection of the Upper and Lower Jaw. It features a double impact Hi monocoque Shock Frame that Works By absorbing and dispersing impacts Away From The Point of contact, Keeping teeth and gums Protected. Technology in this Mouth Shield ensures a comfortable and pas Positioned Bite, and there is a Channel to help you Breathe more easily.