SISU Mouth Guards Max 2.4mm Custom Fit Sports Mouthguard for Youth/Adults SISU Max mouth guards offer premium, warrantied dental protection for players age 11 and up, including adults 2.4mm thick, the Max offers the most protection of any SISU guard, but is still 30% thinner than conventional sports mouth guards The slim, custom fit makes it easy to talk, breath and drink without removing the guard, which contributes to better hygiene Diffusix technology scientifically distributes impact forces from soccer, football, hockey, lacrosse, basketball, boxing and other contact games SISU Original mouth guards changed the game with a fully customized fit that offers maximum protection in an ultra-slim profile