Features: Wide field of vision: tempered glass lens, anti-fog and anti-impact, the field of vision is increased from 120 degrees to 180 degrees, and the mirror field of vision is wide. Goggles Skirt Design: key areas around the forehead and cheek bones have been designed with dimples which combine to increase the skirts softness, flexibility and skin surface contact. Comfortable and soft: our exclusive ultralight twolens mask has an ultra light polymer frame and comfort fit skirt in high quality silicone. Fully dry breathing tube: the top valve has a float valve. When the tube head is submerged in water, the float will immediately start the valve to seal the breathing tube and prevent water from being scooped. Large diameter purge valve: the High Flow Purge design used on snorkels offers a covered large diameter purge valve for simple, quick clearing, reducing the amount of water remaining in the mouthpiece in an instant. Leak proof and anti-shock: PC material with snorkel, anti-shock and wear resistant. Silicone water-stop valve plate, with great leak proof effect. Adjustable buckle and silicone straps,suitable for different people. Specifications: Type: Snorkeling Equipment Quantity: 1set Material: Silicone+PC+PVC Package Included: 1 Set Snorkeling Equipment