Odoland 4-in-1 Snorkeling Packages, Full Face Snorkel Mask with Lightweight Backpack and Waterproof Case for Adults and Youth - GoPro Compatible

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About Odoland 4-in-1 Snorkeling Packages, Full Face

Description Superior Material--Made of liquid silicone and superior quality PC, Non-toxic, Non-sticky. Soft and adjustable fabric straps allow for a snug fit. 180 Wide View: This is a tough, shatter and scratch resistant one-piece tempered glass lens and the broadside dual sealing design. Anti-Fog Design -- Double air flow channels and permanent anti-fog treatment on the lens. Dry Tech & Anti-Leak --The floating ball goes up and blocks the air inlet, which prevents water from entering the mask. So you can breathe freely. Tips for Checking the Seal 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. Tips for Using Once in the water, swim on the surface and breathe calmly through your mouth or nose. 1.If you feel light-headed, resurface and remove the mask immediately. Keeping your chin slightly up will create the best breathing experience. 2.If you feel any obstruction to your breathing, it may be due to the snorkel being covered in water temporarily. Lift your head out of water and try to drain the water out of the mask. 3.If water leaks into your mask, simply lift your head out of the water and it will drain through the chin valve - no need to take off your mask to clear it from water. Specification Material: silicon, PC S/M: measurement less than 4.7'' (12cm) L/XL: measurement more than 4.7'' (12cm) Package 1x Diving Mask 1x Mesh Bag 1x Waterproof Phone Case 1x Daily Backpack