COLOGGO Snorkel mask FULL FACE Snorkel Mask EASY BREATH - Let you easier to breath comfortably through your mouth or nose when you are snorkeling or diving. Its wide field of vision design provides a 180 degree seaview area and make you can freely enjoy the beautiful underwater world. ANTI-FOGGING AND ANTI-LEAKING-Its inhalation and exhalation are two routes that do not affect each other and effectively prevent fogging. The mask is with silicone as the inside material, perfectly fit any different facial forms and never leak water in it. SIZE TO FIT - Measure the length from your nasal bridge to the bottom of your chin. Our mask is suitable for the measurement lGREATER than 4.7 inch. UNIQUE FUNCTION- There is a camera mount on the top of the mask and you can put a sports camera (like GoPro) on to capture and share the amazing moment with friends. Adjustable elastic band make this mask easy to put on and take off. KEEP DRY TECHNOLOGY- The mask Specially designed a ball type seal system at the top of the tube. Effectively prevents water from entering the mask when submerged. Purge valve at the bottom of the mask to drain water when the head is raised.