Deep Blue Gear Maui 2 Semi-Dry Snorkel Semi-dry top to deflect splashing water Contoured snorkel with comfortable soft silicone mouthpiece to reduce jaw fatigue Composite flex tube ergonomically designed for a proper fit; soft silicone mouthpiece helps minimize jaw fatigue Built-in silicone purge valve for easy clearing Adjustable snorkel keeper holds the snorkel on the mask for a custom fit; 17-inch tube length