SISU Mouthguards are 1.6 mm thin protective dental shields, made from a non-compressible, perforated, remoldable thermal polymer. Powered by Diffusix™ technology, SISU Mouthguards deflect impact forces and absorb shock. Scientifically-engineered perforations create a custom fit and allow for a natural flow of air and saliva, to help improve communication on the field and increase athletic endurance, due to better breathability.