Our Guarantee if you are not satisfied with our mask, you can return it without any reason within 30 days Our company will always stick to the target of high quality, good faith, unique brand and long-term development. Material : Silicon and PC 180° PANORAMIC VIEWING: Allow you to see everything easily, you will get an impressive diving experience EASY BREATHING SYSTEM:The innovative Mask design allows regular, natural breathing with maximum comfort. DRY TOP TECHNOLOGY: A dry top seal at the head of the tube prevents water from entering the mask, drain valve at the chin will ventilates any leaked water. There is no need to remove the mask ATTENTION PLEASE our anti fog spray use the USA latest technology which is in solid state,before using it,please add some water into it until it is almost full and shake it a few times Before putting the mask on your face, make sure you have adjusted the elastic straps perfectly for your face size. Once the mask has been tightened to fit against your face, just pull the straps once again until no gap is left between your face and the silicone inserts of the mask. this mask can not be used for deep diving all the similar mask in the market are the same RFQ How to choose the size? Measure your face from the bridge of you nose down to your chin. S/M- less than 4.7in (12cm) L/XL- more than 4.7 inches(12cm) Men should have a clean shaven face to create a seal between the mask and their face or it will leak. Does it fog up when you are wearing it? it will depend on the conditions.In warmer water it should not if you have a good deal. In colder water it may fog. You can also reduce fog by cleaning the inside of the mask with a non abrasive toothpaste and tooth brush.

• ANTI-FOG DESIGN- Exclusive breath ventilation concept prevents fogging. There is nothing worse than dealing with a mask that is constantly fogging up. Our innovative design features a separate breathing chamber that creates an airflow away from your main viewing visor that helps eliminates fogging and will keep you snorkeling longer.
• 180° FULL FACE DESIGN- makes it easier than ever to breathe comfortably through your mouth or nose while you are snorkeling. Fits for all swim newbies without any swimming experience, people can enjoy snorkeling who even cannot swimming when pairing with life jacket.
• EASY BREATHING AND USING: It cover all of your face, naturally breathing through nose or mouth. Water-tight with ergonomic design, perfect for human face, no inhaled water. you will spend less time fuss with equipment and enjoy snorkeling.
• DRY SNORKEL TECHNOLOGY stops salt water from getting into your mouth and prevents gagging.
• KIDS AND YOUTH will love the way the mask works as they are learning to snorkel and swim with their head in the water. Plus they will think it's so cool to be able to breathe underwater!

ANTI-FOG DESIGN- Exclusive breath ventilation concept prevents fogging. There is nothing worse than dealing with a mask that is constantly fogging up. Our innovative design features a separate breathing chamber that creates an airflow away from your main viewing visor that helps eliminates fogging and will keep you snorkeling longer.Yiwu zhuo yan swimming glasses factory