Designed to be exactly what its name suggests, the Ultra Dry snorkel incorporates Oceanic&';s Dry Snorkel Technology into an ultra-low profile product that is ergonomically designed for comfort and function. Design: Utilizes patented dry snorkel technology to prevent water from entering the tube while on the surface or submerged. Components: Features a drop-away flex mouthpiece for comfort and ease of use. Clearing: Equipped with efficient dual exhaust valves for easy clearing of any water that does enter.