Designed for lax players who prefer to easily talk, breathe and drink during the game (otherwise known as: all lacrosse athletes), every SISU lacrosse mouthguard comes with a promise: our custom fit mouthguards will revolutionize your game. It doesn’t matter how old you are, how many teeth you have, or whether you’re an Average Joe or MVP. SISU means MORE PROTECTION and LESS MOUTHGUARD. Always.