Cressi is a REAL diving, snorkeling and swimming Italian brand, since 1946. Features a float mechanism that instantly closes to prevent water from entering the snorkel if accidentally or purposely submerged.; The snorkel has a highly flexible tube that reduces jaw fatigue and folds compactly for storing in a BC pocket or travel pack; A wide elliptical bore shape increases air flow capacity for more comfortable breathing and more comfortable breathing and more comfortable breathing a purge valve allows Instant clearing when needed; Mouthpiece made in quality silicone.