Vaincre 180&deg; View Snorkel Mask Full Face Design Snorkeling - anti-fog and anti-leak Technology 180 FULL FACE DESIGN. Makes it easier than ever to breathe comfortably through your mouth or nose while you are snorkeling. Full FACE DESIGN Mask for natural breathing through the nose and/or mouth. EASY TO USE so you spend less time fussing with equipment and more time enjoying your snorkeling experience.Full mask for natural breathing through the nose and/or mouth. Anti-FOGGING DESIGN & DRY SNORKEL TECHNOLOGY. Spend less time worrying about water in your mask and more time snorkeling!