This is the Seasoft Matrix Semi-Dry Silicone Snorkel with Purge Valve Features: Semi-dry snorkel Lightweight Low-drag Purge valve for easy clearing A lightweight, low drag, easy breathing and clearing snorkel with an excellent water elimination system and the Super Liquid Silicone (SLS(TM)) tube and mouthpiece combined with a patented snorkel keeper. It does have everything!