New Oceanic Ultra Dry Flexible Purge Snorkel for Scuba Divers & Snorkelers - 100% Dry (Ice Blue) Patented Dry Snorkel Technology virtually eliminates water entry without sacrificing performance Oversized purge valve for easy clearing Quick-release swiveling snorkel keeper Drop away smooth bore flex mouthpiece Replaceable 100% liquid silicone mouthpiece and purge valve