Dual Window Safety Tempered Glass: Featuring a two window tempered glass structure, this snorkel mask provides a crystal clear 180?? panoramic view. Designed to be explosion proof and scratch resistant, the durable toughened glass ensures enhanced safety and long lasting use, even under pressure. Upgraded Dry Top Snorkel for Safer Breathing: The innovative dry top snorkel features an automatic sealing valve that closes instantly when submerged, effectively preventing water from entering the breathing tube. Once back at the surface, the valve reopens for smooth airflow.This new valve system ensures reliable performance and clog free operation??even when waves splash overhead, thanks to its built in splash guard. .
eBay