Full Face Snorkel Mask Adults Suitable for Beginners Dry Top Snorkeling Gear 180 Degrees Panoramic View Anti-Fog Anti-Leak HIGH QUALITY MATERIALSOur snorkel mask is made of high-quality PC and medical grade silicone. Non-toxic and environmental, which can prevent skin allergic or other skin problems. The adjustable elastic ribbon is convenient and comfortable to wear. You no longer need to worry about pulling your hair when you putting on a snorkeling mask. 180 PANORAMIC VIEWOur full face snorkel mask gives you a complete unobstructed 180 degree panoramic view of all the life underwater. You can see in almost every direction. In addition, different from a curved Lens which makes everything seem to be farther away than normal, which is unsafe and will cause dizziness and headache over time, our snorkel mask is equipped with a different lens that brings you more comfort and reality scene. ANTI-FOG & ANTI-LEAK TECHNOLOGYUsing hygienically superior silicone material, Soft silicone does not have an unpleasant smell and is face-fit friendly, and also eliminates the falling-off problem of the snorkel mask. Eparate inhaling and exhaling channels with anti-fog coating on the lens and anti-fog inserts, stop the top snorkel mask from fogging up. Tips: men must be shave the beards before using the diving mask, make sure it doesn't come between your chin and the mask.