The Matrix mask is one of the adult used masks in the market suitable for scuba diving and snorkeling. Features inclined and inverted tear-drop lenses for improving downward visibility, a Cressi patented design (US 6272693). Perfect for checking the BCD and the instruments while scuba diving. The field of view is particularly wide, laterally and in the lower zone. The lenses are made of tempered glass. Extremely low internal volume on par with the best free diving masks. Ideal for easy-equalization. The hypoallergenic soft silicone skirt shaped provides a wide sealing surface for a leak-free fit.