Completely dry top prevents water entry when submergednUnique splash guard reduces the entrance of water during use on the surfacenCorrugated end piece with smooth interior keeps the snorkel away from the mouth when scuba divingnLarge exhaust and purge valve at bottom for easy water clearingnWater collection well at the bottom with elliptic purge valvenInnovatively designed to keep water out when submerged and on the surface, the Cressi Dry Snorkel will help you breathe easy. A unique splash guard at the top reduces water entrance when snorkeling, while the completely dry top and bottom purge valve make for easy, underwater swimming. The silicone mouthpiece offers a comfortable fit, allowing you to explore hours on end.