Soft Nose Cover: Swimming goggles children is with soft silicone nasal mask, which is needed to compensate for increasing pressure as kids swimming, snorkeling or diving. Also it's helpful for kids who do not know how to stop breathing by nose underwater. Perfect for snorkeling and recreational swimming. Comfortable to Wear: Widened soft silicone, not tight to wear, compression-resistant and shock-absorbing sealing ring, does not oppress the eyeballs and cares for the children's eye sockets. Overall Excellent Waterproof: The sealed silicone skirt of the swim goggles will closely fit your face shape, perfect fit and prevent penetration. High Definition and Anti Fog: Equipped with high-quality tempered glass lenses to bring a clearer visual experience to your swimming or snorkeling process. The inner surface of the lenses is coated with the latest environmental protection technology, which can prevent the glasses from fogging and not hurt your face. (Note: Do not toss them down on the tile floor, Don't jump into water with the mask, Don't scratch the glass with sharp objects.) Easy-to-Adjust Head Strap: Swim goggles fit a wide range of 6-14 years old children's faces. The strap of the scuba diving mask can be adjusted by pressing the button, and the buckle will fix the strap without slipping into the water. Tips to avoid leakage: Tighten the mask until you feel the silicone skirt is completely absorbed on your face.