Here’s something you don’t usually see on a snorkel: ball-joint connections. On IST Sports’ 3-D Flex Dry Snorkel you have two of them: one at the base of the mouthpiece, and one where the purge body connects to the breathing tube. These joints provide 360-degree swiveling, so you can rotate each component to conform to your facial profile. This allows the mouthpiece to fit comfortably in your mouth with the breathing tube aligned to its optimum surface breathing position. The 3D Flex also offers a quad-valve dry top, with not one but four valves that open and close independently. The 3D Flex comes in six colors, and includes a snorkel keeper. Bottom Line: The 3D Flex’s ball-joint connections and its quad-valve design make for a unique and versatile snorkel.
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