JetPilot Body Glove Adult Lucent XP Sport Fins Set Snorkel Mask Tempered glass lens meets all ANSI standards. Easy-adjust strap clip for easy to adjust and lock the strap. Silicone facial skirt and strap provides soft and comfortable fit. Drain holes preventing water being retained inside foot pocket. Purge valve for easy clearing of water from the snorkel. Submersible dry to prevent water entering into the tube. Available in S/M (4.5-8.5), L/XL (9-13)