Damage Control High Impact Mouthguards are made out of Damprotech™ material. Damprotech™ is a damping material that is 150% more shock absorbent than EVA (EVA is the material used by nearly all mouthguard companies). Damage Control has done several independent scientific studies with Sandia Labs one in which ran tests on Damptrotech™ and other materials used by mouthguard companies, and concluded Damroptech™ to be the most shock absorbent.