This mouthguard is, hands down the best mouthguard I've used. It fits and mold around your teeth perfectly. You can talk, breathe and drink with this mouthguard in perfectly! The only downside is that you have to be REALLY careful when you mold the guard. The slightest mistake on the molding process can render the mouthguard useless. But that's ONLY so that the guard can mold to your teeth for a precise fit so you can breathe and talk easily.