The Perla & Supernova Dry combo is suitable for enjoy snorkeling and diving without worrying about water entering the snorkel or in the mask and have the inconvenience of lens fogging. The Perla mask skirt is made out of 100% hypoallergenic soft silicone and the lenses are tempered glass and anti-fog. The mask has a smaller profile and a slight tilt making the mask sit closer to the face. The Perla is a low volume mask that sits closer to the eyes, increasing the underwater field of view. The Supernova Dry snorkel is equipped with a special valve that seals the tube as you dive down, almost totally preventing the entrance of water when the snorkel is submerged. At the bottom of the snorkel there is a large purge valve, making expelling excess water quick and easy. The Perla & Supernova Dry Combo is perfect for any snorkeler seeking the intermediate to advanced level experience.