Promate Kid's/Children's Dry Snorkel w/Purge & Silicone Mouthpiece for Scuba Diving & Snorkeling Childs Snorkel A low-profile valve automatically seals upon descent to create a truly 100% dry snorkel. Child-sized soft silicone mouthpiece. Contoured barrel reduces water resistance and lessens jaw fatigue. Snorkel keeper secures mask strap in place. Silicone purge valve for easy draining.