Easy to Use and Space Saving Designed to take up less space and to be quick to remove and put on for both adults and kids in an emergency Important safety note: never snorkel alone Twoway Waterproof Valve and Dry The snorkel mask features a waterproof valve that automatically closes when submerged, creating a tight seal and preventing water entry The full dry antiwave head includes an automatic water stop system for added safety and smoother breathing Even in waves, it remains effective at preventing water from reaching the respiratory system for a comfortable and secure snorkeling experience Silicone Strap and Comfortable Fit elasticity, durable and well made Made from soft foodgrade liquid silicone, environmentally friendly and safe Easytoadjust buckles and a flexible face skirt designed to fit virtually any face shape and head size Environmentally Friendly Materials Environmentally friendly silica gel that is nontoxic, tasteless, soft and comfortable PC frame is deformation resistant, stronger and lighter Antislip buckle with a professional concaveconvex design for easy adjustment, antislip and antifalling Use Scenarios Family beach snorkeling with kids, quick on/off for breaks and easy sharing Open water or reef snorkeling where waves are present, with reliable water exclusion and comfortable breathing Travel or vacation snorkeling for a versatile fit across different face shapes and sizes while maintaining compact storage