The Aqualung Zephyr Flex's unique dual-material construction combines rigidity and flexibility for dependability and comfort. The Zephyr Flex is a corrugated snorkel, with an elliptical purge valve and an anti-shock soft splashguard. The unique construction uses two materials, one rigid to prevent collapse and the other soft to allow flexibility which reduces pressure on the diver's mouth. Corrugates from other manufacturers collapse even on shallow dives. The joint between the mouthpiece/valve box and the corrugate section is a swiveling sealed connection that rotates for a better fit. The splashguard is made from two materials with the same corrugate technology. This rigid, yet flexible construction helps prevent potential injuries in crowded environments such as diving clubs, classes and on boats.

At the very heart of the snorkel is Aqualung's shaped and protected silicone elliptical purge valve, the shape of the valve guarantees sealing as well as ease of purging. Thanks to this purge valve, the Zephyr Flex creates a seal against incoming water and makes easy work of purging water away. The anatomically-designed medical grade replaceable silicone mouthpiece reduces jaw fatigue and the soft splashguard top helps to reduce water entry at the surface in choppy conditions. The D-barrel-shaped tube helps the Zephyr Flex rest more streamlined against the diver's face. The large ergonomic snorkel retainer is easy to operate, even with thick gloves. Snorkel is available in multiple colors.