Phantom Aquatics Signature Mask Dry Snorkel Set Mask features: wide peripheral vision, ultra low volume makes the mask effortless to clear Wide silicone head strap forms to divers head for fit and comfort, tempered glass lenses High-grade silicone material allows the facial skirt to flex and Naturally mold around facial contours for a leak-free Seal Snorkel features: low profile dry-top delivers outstanding performance, one-way purge valve allows for easy clearing Comfortable silicone mouthpiece perfectly Angled for maximum comfort, flex section delivers a better fit that moves with you