The Mambo mask has a patented colored trim and elastic strap that provides the user with a stylish, low volume frameless mask with day long comfortable strap. Strap also has a sewn in snorkel keeper for easy snorkel on/off. Snorkel: dry top, drop away tube is perfect for scuba or snorkeling. replaceable silicone mouthpiece. Features: Low-volume, frameless silicone mask with tempered lens Super comfortable COMFO-STRETCH fabric ski-goggle-like strap with built-in snorkel holder Dry top, drop away silicone snorkel for scuba/snorkeling Comfortable wear that doesn't tangle hair