Full Face Mask For Children With Free BreathingMaterial Liquid silicone+PC FEATURES: Full dry, Anti fog, Anti leak DESCRIPTION: 1. Tubeless Design. No need to put snorkel in your mouth like traditional snorkel set. 2. Anti Fog Technology. Double air flow channel to avoid fogging. 3. Larger viewing area 4. Drain valve design. Simply raise your head and water will exit through the drain valve. 5. Easy Fit, Wide Elastic, Adjustable Band. No more tangle hair. 6. Taller Snorkel, with Gorpo (underwater