Cute Shark Shape, Kids Like It - The cute shark shape is popular with children, and it can also increase children's interest for snorkeling. Comfortable Material, Build For Your Comfort - Inner non -toxic and odorless food grade silicon, and adjusted elastic strap can perfect fit to your face with no gaps. The rubber earplugs in the accessories can prevent water from entering your ears when snorkeling. Easy Breathing Like a Fish - Glymnis snorkel mask brings a more natural breathing experience to our customers, renovating the situation that users can only rely on using their mouths to breath.You can easily breath with your nose like on the land during snorkeling. 180° Panoramic View, Amazing Undersea Scenery - With the shockproof and opital glass, this snorkel mask provides unparalleled, 180-degree and undistorted views of the undersea world to you, allowing you to discover the wonderful sea creatures. Enhanced Anti-fog & Anti-leak Ability - Glymnis snorkel mask adopts dual airflow system. Inhaling and exhaling separate channels structure can realize logistics anti-fog and make the vision clearer. Full dry breathing tube can collect fresh air and blocks water from entering.