This low profile and light weight snorkel features a flexible vinyl tube, giving divers the ability to fold up and stow away plus a purge valve makes clearing salt water a breeze. No more gulping salt water while trying to enjoy the subaquatic scenery. The Stable is the easiest clearing snorkel tested in the industry. A shark fin shaped tip reduces chances of getting hung up on line, seaweed or floating material and the high quality hinged snorkel keeper ensures your mask and snorkel stay together. This amazing snorkel has been tested by divers as a true fresh air snorkel for freedivers.