DRY SNORKEL TECHNOLOGY A ball at the top of the tube will automatically seal the air valve to stops salt water from getting into your mouth and prevents gagging, Spend less time worrying about water in your mask and more time snorkeling. EASY BTEATH & ANTI-FOG DESIGN Smaco Full face snorkel mask allows user breathe through mouth or nose while snorkeling with no mouthpiece. With snorkel tube allow you to diving 180 PANORAMIC FULL FACE DESIGN With our 180 seaview snorkel mask, you can go diving to wonder at the beauty of the underwater world that you'll see more amazing ocean creatures, like corals & sea turtles than ever before. 100% UV BLOCKING The SMACO snorkeling mask features a UV coating. It gives you a clearer, brighter view and blocks all UVA and UVB rays to better protect your eyes. ANTI-FOG DESIGN Our full face snorkel mask takes away the issue of fogging up on mask during diving. We maximize snorkeling experience through featuring a separate breathing chamber which creates an airflow away from your main viewing visor that helps to eliminate fogging on mask while you can keep snorkeling for a longer period. SAFETY AND COMFORT This snorkeling mask has an adjustable headband. you can easily adjust its size to fit you head comfortably, allowing your to move and breathe freely without losing the mask. ",