The Guardian Mambo Snorkeling Mask is a stylish, low volume frameless mask with a patented colored trim and elastic strap that provides the user with day long comfort. The strap also has a sewn-in snorkel keeper for easily attaching and removing a snorkel.• Low volume, frameless mask• Tempered lens• Elastic strap with sewn-in snorkel keeper Elastic strap provides day long comfort Sewn-in snorkel keeper for easily attaching a snorkel | Guardian Scuba Guardian Adult Mambo Frameless Mask