1. Water tight with ergonomic design, perfect for human face, no inhaled water.
2. Ventilating fan design, anti-fog, breathe freely without chewing the breathing tube.
3. When in water, the top valve auto closes to prevent water in flow.
4. Dry diving technology stops water from getting into your mouth and prevents gagging.
5. With a mount for mounting action camera.
6. Main body adopts with PC material, lined edge adopts with high grade silicone.
7. Design principle: Dual airflow anti-fog channel, dry top system, drainage valves, elastic fabric head strap, super wide vandal-proof mask.
8. Note: The camera, camera waterproof case and screw are not included.