Explore beneath the waves with the Cressi Quantum Scuba Diving Mask! It delivers enhanced downwards vision, and an air-channeling system of membranes in the molding around the eyes and nose diverts warm air toward the rubber skirt, rather than the lenses. In addition, the external part of the skirt incorporates 2 small heat exchangers that act like radiators to drop the temperature inside the mask to further prevent fogging. And yet, the Quantum remains compact and comfortable to wear! Enhanced downwards vision System of membranes in the molding around the eyes and nose diverts warm air toward the rubber skirt External part of the skirt incorporates 2 small heat exchangers that act like radiators to prevent fogging Compact design Comfortable to wear