【CLEAR VIEW 180 & CAMERA MOUNT】Zenoplige full face snorkel mask offers a curved high-quality clear material to cover your face and provides a clear uninterrupted 180-degree vivid viewing. A specially designed camera mount makes it convenient to put on and take off. The snorkeling mask is perfect for more professional snorkelers or beginners who want to get a wonderful snorkeling experience. 【ADVANCED RESPIRATORY SYSTEM】 The snorkel mask has an innovative design that provides three channels to create a unique respiratory system. ONE intake valve and TWO air outlets make it available to control the flow of air and limit exhaled air from seeping back into the upper chamber, which has the effect of Anti-Fog. 【ANTI-LEAK & DRY TOP SNORKEL】This diving mask Uses a liquid silicone skirt to ensure full adherence to the face, the mask effectively prevents water from getting into the mask. And please don't worry about water seeping into the snorkel as you dive in because its built-in standard ball float system is able to stop the water from entering the tube when submerged. 【MORE COMFORTABLE & SAFETY】 The adjustable V-strap back goes a long way to keep the mask tight on your face. And it's available to adjust this swimming mask anywhere through the quick release buttons on both sides. Our snorkel mask adult comes with a detachable snorkel tube for more convenient transport so that you can enjoy your overseas trip. 【SIZING TIPS】Be sure to measure from the bridge of your nose (between your eyes) to the tip of your chin, along the side of your nose, not over the top. Please choose a suitable size for you, in case too smaller or larger. After wearing please press the snorkeling mask, to be sure it can tightly wrap your face.