Cressi Adult Diving Dry Snorkel with Splash Guard and Top Valve | Supernova Dry The dry snorkel features a float mechanism which close instantly to prevent water from entering the snorkel whether accidentally or purposely submerged. It has a highly flexible corrugate silicone tube that reduces jaw fatigue. A wider elliptical bore shape increases air flow capacity for more comfortable breathing and a purge valve enables instant clearing when needed. Mouthpiece made of quality hypoallergenic silicone to ensure comfort. The Supernova Dry is designed in Italy by Cress and made in Taiwan. Cress is an Italian brand pioneer in scuba diving, snorkeling and swimming equipment.