Cressi Alpha Dry Diving Snorkel | Blue | 2021 The new Cressi Alpha Dry Diving Snorkel allows users to take every breath with confidence and focus on the reef below. It is light, easy to attach, durable and made using quality materials to ensure a greater overall experience under the water. It features a float mechanism which closes instantly to prevent water from entering the snorkel whether accidentally or purposely submerged. It also features a flexible lower bore that reduces jaw fatigue and a mouthpiece that drops away when not in use, ideal for scuba divers. The high-quality silicone mouthpiece is comfortable and durable with an angled mouthpiece that reduces jaw fatigue. Features  Lower purge valve - allows water to be quickly expelled Streamlined design - reduces drag while swimming Adjustable clip - for securing to any mask