FEIYU CREATIVE Anti-UV Dual Snorkel Mask Diving Mask for Adults & Kids, 180°Full Face Snorkel Kit w/Adjustable Belt and Gopro Mount, Perfect for Swiming Skin Diving

How to choose the size? Firstly, Measure the length from the Eye to Chin. If the length is 4. 7 inches (12cm) , Choose size S/M. (Suitable for Junior and Adult Woman)If the length is greater than 4. 7 inches (12cm), Choose size L/XL (Suitable for Adult Men)Use Tips: 1. Checking the seal before use: Pull the straps of the mask over your head and check that the mask sits fittingly on your face. Breath normally to check for any leaks in the mask: if you feel a slight pressure change when you breath, then it is sealed very good, otherwise please kindly adjust the mask strap size and try again. 2. Make sure you wear the diving mask properly: We recommend that men shave their beards before using the diving mask and people with long hair, make sure it does not come between your forehead and the mask. because the hairs can break the seal between the silicone skirt of the mask and your skin. ​​Use the mask properly will also reduce mist up. Make sure that the nose silicone parts close to your face, breathing slowly through your nose helps reduce fogging and emotional tension. 3. If you feel any obstruction to your breathing, it may be due to the snorkel being covered in water temporarily, but the dry top snorkel design will prevent water from entering through the top of the snorkel. 4. This snorkel mask is designed for the surface swimmers. intensive swimming are not recommended.

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