1. Leakproof design and floating closure system: We have designed a float in the fullface snorkeling mask. When the snorkel rises above the water surface, the float drops and opens the airways, allowing you to breathe ly. In addition, the waterproof ring and durable snorkel of the fullface snorkeling mask for adults can provide a waterproof seal for your face. 2. 180° panoramic viewThe tempered glass of the fullface snorkeling mask set provides you with a shatterproof window. The 180degree panoramic snorkeling mask ensures that you can ly observe a variety of fish and other marine life underwater. With a detachable mount, you can easily attach the camera to record these beautiful moments while snorkeling. 3. Highquality materials and antifog designThe fullface snorkeling mask is made of highquality antifog tempered glass and features a separate breathing chamber to form an airflow away from the main viewing area, effectively preventing fogging and helping you clearly appreciate the beauty of underwater creatures. 4. Comfortable and easy to use: This adult snorkeling mask is made of highquality foodgrade silicone to ensure a soft fit on your face, and you can say goodbye to the hassle of biting the mouthpiece. Dive into the water and experience natural breathing underwater through your nose and mouth, as easy as breathing on land. We also provide earplug accessories to prevent water from entering your ears while snorkeling.