Not only has this new Cressi Crystal Silicone been chosen, with its exceptional softness and comfort, but the entire design of the skirt has followed new rules which allow a point of contact between the mask and the face that has a very open angle. The mask rests on the face with unprecedented comfort and does not leave any marks on the skin, even after extended use. Naturally, to obtain such a result the entire structure of the skirt is differentiated, with internal ribs that stiffen the parts of the mask that are most stressed. Mask for scuba diving and advanced freediving,designed to offer an extremely hydrodynamic and compact shape to help divers cut through the water and aid movements in small spaces. The internal volume is minimal and does not require intentional equalizing. The swiveling buckles feature micrometric regulation. Angled tempered glass lenses. Anatomical strap.