1.180° Extra Wide Field of View HD Tempered Glass: the diving goggles adopts HD shock and antifog lenses, which can effectively prevent them from being fragile, the index is higher. 180° extra wide panoramic design you a crystal clear view and does not distort the view underwater. It is the choice to explore the underwater world cheerfully. 2.Better antifog effect: the lenses of the diving goggles use nano antifog technology and the mirror surface is coated with a nano antifog coating, making the antifog effect more effective and durable. Rinse with clean water and allow to dry naturally after use. 3.Foodgrade liquid silicone and antifog: the skirts of the glasses and the snorkel set are made of highquality liquid food grade silicone, the 3D design adapts to the facial contours, the double skirt design adapts perfectly to the face without gaps, so that the water can penetrate. Thanks to the soft and liquid silicone material, it leaves no red stains on the face and will not make your face allergic and it is easy to clean after use. 4.ADJUSTABLE BUCKLE DESIGN The snorkel goggles has an adjustable strap that allows the snaps and adjustment on both sides to easily adjust the band without too much force. And these are unidirectional adjustment buckles on both sides of the strap. This intelligent feature prevents accidental loosening and ensures a secure fit even in extreme situations. The adjustment strap is also made of soft silicone, which is comfortable but not tight, widened design and relieves pressure on the back of the head. Immerse yourself with confidence and enjoy a worry diving adventure.