Snorkel Mask Foldable Greatever 180 Degree View Free Breathing Full Face Snorkel WIDE FIELD OF VISION------ 180 degree field of vision and shatterproof polycarbonate window for added safety. Anti-fogging------Double air-flow channel - inhaling and exhaling separate channels for anti-fogging.Impermeability / seal------Dry Top snorkel system stops water entering through the top of the snorkel.Water drainage------Purge valve at the bottom of the mask to drain water when the head is raised.Easy dressing------Adjustable elasticated textile strap does not pull your hair out.Visibility------Snorkel top can be seen from 4 times further away than a traditional Snorkel.Swimming depth------Reminder: Surface mask, not suitable for free diving. Description:This full dry snorkeling mask set your hand free, offers a unique diving experience to users allowing them to every breath-taking underwater scenes. The innovative dry top technology enables you to breathe freely underwater. Full face design with tempered glass provides better protection for your face. It is the best mask for you to enjoy your diving experiences!Durable with camera mount, easy attached to gopro cameras.Broadside dual sealing design is from imitating human face, made of silicone without skin irritation.180 degree wide viewing with anti-impact safety window for good vision.With a breathing tube with dry top technology, you can breathe freely underwater.Four adjustable elastic fabric headband, easy to wear and suitable for all kinds of head shape.Fashionable,Comfortable,Soft,Good Viewing,Fit for Face. Important note: GoPro camera, GoPro camera Waterproof case and screw are not included. Specification:Material: Silicone + PCColor: black, blue, green, pinKInside diameter: 17 * 13CM, outside diameter: 23 * 19CM Package included:1 x Diving Mask1 x Breathing Tube