The Oceanic Arid uses a wave deflector at the top of the snorkel bore to direct lapping water away & help prevent it entering the snorkel. A quick release sliding mask strap retainer allows enhanced fit, positioning of the snorkel & comfort after prolonged us. A full 100% silicone corrugated section allows the mouthpiece to drop away from the mouth when its not needed. The silicone section is only corrugated on the outside, keeping the internal surface smooth to improve air flow & reduce turbulence. An oversized one way purge valve allows easy clearing of water after surfacing from a dive or draining of any water that does enter through the top of the snorkel. A full 100% silicone mouthpiece ensures a comfortable snorkelling or diving experience. Specifications Deflector prevents water entry Drop away flex mouthpiece Oversized purge valve for easy clearing Replaceable 100% liquid silicone mouthpiece Due to recent changes in EU regulations the snorkel top may be black & not orange.