Cressi Matrix Premium Scuba Snorkel Dive Mask with Case (also with Black Silicone) - Made in Italy - Easy Adjustable Micrometric Buckles 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's patented design (US 6272693). Perfect for check 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. Micrometric adjustable buckles allow precise headband adjustments. The Matrix is designed and made in Italy by Cressi, a brand pioneer in Scuba Diving, Snorkeling and Freediving equipment.