U.S. Divers Magellan Mask Snorkel GoPro Ready Combo Gun Metal Adult mask - one-size-fits-most. Hypoallergenic silicone face skirt for ultimate comfort Submersible, Dry top snorkel - designed to keep water out of the breathing tube above and below the surface of the water Ergonomic silicone mouthpiece provides comfort and reduces jaw fatigue Flex section maximizes comfort and improves fit. One-way purge valve and built in whistle With GoPro ready camera mount