The new Nano 3D is the ultimate self-fit mouthguard. The Nano 3D features a lower profile, closer fit and less bulk, providing athletes improved airflow and breathing, and the ability to speak freely and clearly. The Monocoque Shock Frame offers a new thin-wall design that absorbs and disperses impacts away from the point of contact. The Tri-bite feature aligns and stabilizes the upper and lower jaw , while enhancing fit and protection. The Gel-fit Liner custom molds to teeth for a tight, comfortable fit.