SISU is one of the fastest growing companies in the US. Their mouth guards are very popular with Roller Derby skaters, as well as many other high impacts sports around the world. SISU Mouthguards are 8 times tougher and up to 50% stronger than conventional mouthguards. They are also incredibly slim, roughly half the thickness of conventional mouthgards, which provides a level of comfort unmatched by its rivals.
SISU Mouthguards are the derby skaters go to mouth protection. Their mouthguards help protect any skaters gums and teeth, however unlike many other mouth guards out there, they're thinner and easier and most comfortable to wear than other similar products available.