The Cressi Supernova Dry Snorkel has an anti-splash end with a special valve that seals the tube as you dive, almost totally preventing the entrance of water when the snorkel is submerged. The lower end has a corrugated section that has a smooth internal bore which prevents trapping water inside the snorkel tube allowing excess water to quickly drain to the collection reservoir below. The corrugated section also quickly drops-away from the diver’s mouth when switching from the snorkel to the Scuba regulator. The special water collection r with its large elliptic one-way exhaust valve makes expelling excess water quick and easy. The replaceable angled mouthpiece and corrugated tube section are both made from hypoallergenic silicone adding comfort and function. A quick release snorkel keeper and ergonomic contoured shape make this one great snorkel. Snorkel is available in multiple colors.