The Reef Tourer semi-dry snorkel features hyperdry technology that reduces water flow into the snorkel. Made with comfortable materials for endless hours of enjoyment in the pool or in the ocean. - This snorkel features a splash guard to reduce water intake for easy breathing. The vents and covers angle and direct the water away from entering through the snorkel opening. - Made from food grade silicone, the mouthpiece is comfortable, durable, & long lasting. It is very soft and flexible which makes it is easy to grip down on with your teeth allowing you to snorkel for many hours at a time. - The purge valve is a one-way valve found at the bottom end of the snorkel. It allows a snorkeler to easily clear any residual water from the snorkel tube by gently exhaling the water through the valve. - Three-dimensional snorkel pipe curve for ergonomic fit. - One touch adapter that can be easily snorkel detached and attached to a mask. - 3-YEAR/36 MONTH WARRANTY