JetPilot Body Glove Jr. Lucent II Combo Sport Snorkel Mask Tempered glass lens meets all ANSI standards. Pivot buckle for custom fit. Easy-adjust strap clip for easy to adjust and lock the strap. Silicone facial skirt and strap provides soft and comfortable fit. Purge valve for easy clearing of water from the snorkel. Submersible dry to prevent water entering into the tube. Silicone patterned mouthpiece for extra comfort.