This is the Oceanic Arid Semi Dry Flex Snorkel with Oversized Purge Valve for Easy Clearing Features: Patent pending dry top deflector prevents water entry Drop away flex mouthpiece Oversized purge valve for easy clearing Replaceable 100% liquid silicone mouthpiece Available in 7 different colors A patent pending deflector helps to keep the Arid as dry as a desert, even in waves and wind. Patent pending dry top deflector prevents water entry, drop away flex mouthpiece, oversized purge valve for easy clearing, and a replaceable 100% liquid silicone mouthpiece.