SISU mouthguards are designed to provide increased durability and comfort. They are 8 times more durable and 50% harder compared to other mouthguards. Their unique feature is their slim and lightweight size, with a thickness of 2.4mm. They are so thin that they are almost unnoticeable when worn. In addition, there is no need to remove the mouthguard in order to speak or breathe comfortably, or to drink water.