U.S. Divers Adult Viewpoint LX Mask/Phoenix LX Snorkel High-tech, 4-window mask provides maximum visibility Hypoallergenic silicone face skirt for ultimate comfort. Quick-release, 3-way adjustable buckles for easy adjustments Submersible dry top snorkel with purge and safety whistle Hypoallergenic silicone mouthpiece for comfort and durability