This demonstration video goes over the features of the Oceanic Ultra Dry Snorkel. Some snorkels claim to be dry - but the Oceanic Ultradry is the only snorkel with a 100% money back guarantee - if you ever get a drop of water inside, send it back for a full refund. The Ultra Dry features Dry Snorkel Technology eliminates water entry without sacrificing performance. There is an oversized purge valve for easy clearing. As well as other features such as smooth bore silicone flex tube, comfortable curved mouthpiece and a snorkel retainer. Also available in Black Silicone and the Mini (for kids and women).