Named one of Inc. 5000 fastest growing companies in the US, Akervall Technologies (ATI) manufacturers ultra thin, no impressions, custom fit, remoldable mouthguards. SISU mouthguards are ultra thin which allow athletes to talk, breathe & drink without removing the guard. Committed to cutting-edge technology, ATI mouthguards are made of a non-compressible thermoplastic polymer that is 30% stronger than conventional mouthguards. All Guards BPA, phthalate, PVC and latex free. $35,000 warranty.