Deep Blue Gear Ultra Dry 2 Snorkel Snorkel with completely submersible Dry top keeps water out for an effortless snorkeling experience Large bore tube designed for easy breathing experience and quick clearing of water Composite flex tube ergonomically designed for a proper fit; soft silicone mouthpiece helps minimize jaw fatigue Built-in silicone purge valve for easy clearing Quick release snorkel keeper helps to easily detach snorkel from mask strap; 18-inch tube length